Colt Ar-15 A2 Gov T Carbine Serial Numbers

Posted on  by 

Carbine
  1. Colt AR-15 A2 Gov't Carbine R6520 Pre-Ban.223. Description: Colt AR-15 A2 Gov't Carbine in.223 Remington. 16' barrel with bayonet lug, 1:7 twist. 2-position collapsible stock with sling. 800M Adjustable rear sight. No box, so whether it was a green or blue box I do not know. This is As-New, maybe fired a handful of times.
  2. Colt ar15 serial numbers.

COLT SOCOM 14.5, Colt AR15, Choose Colt, M4,M4A1 uppers,Colt full Auto BCGS, Colt Keyhole upper receivers.SOCOM,11.5 FBI, COLT CLONE Colt Parts for sale.

Messages
14
Reactions
1
Incredibly nice Colt AR15 A3 style rifle with removable carry handle and flat top.
Not been altered in any way. Serial is a CCH 002XXX. A few handling marks, but the bore and receiver are pristine.
Comes with 2 mags. I'll throw in a third mag as well as one of them needs the feed lips adjusted a little.
AR 15 , AR-15, however you want to spell it
We are very fortunate to live in WA state that allows a face to face private party transaction to be done without any paperwork required. No transfer, registrations etc are required. I only need assurance that you are a WA state resident and that you are legally allowed to purchase a firearm. That's it, no bills of sale, nothing else. Take advantage of our freedoms now before they change!
I'm near the freeway between Longview and Chehalis / Centralia.
Partial trade for a marine pump 12 gauge shotgun such as Winchester 1300 Coastal Marine, Remington 870 Marine Magnum or Mossberg 500/590 Mariner. I would have to have some cash on top as well obviously.
$1150

Colt AR-15 Sporter Lightweight .223/5.56. 20' barrel marked withMP 5.56 NATO 1/7. approx D.O.M. 1993-1994.

What is the manufacture date of a Colt AR15 model SP1 serial number SP192754?

What is the manufacture date of a Colt AR15 rifle serial number 192754 model SP1

When was your colt ar15 manufactured?

You will have to call Colt and tell them the serial number.

What year was the colt ar15 ser?

  • Colt AR-15 SP1 carbine, model R6001. This is a pre-ban AR, serial number SP1687xx. We believe this one was made in the early 1980s. (All serial numbers below SP360200 are pre-ban).
  • Newbie to this but how does one figure out when his rifle was manufactured if it is possible. Mine is a A2 SP 31805x and is supposed to be preban. That is, mine has 6 digits These are 5 digits prior written here Colt AR-15 Serial Number List.
  • Dec 11, 2016 I don't know about the online database, but when I called them with the S/N of a Colt pre-ban AR-15, they were able to tell me the month and year it was built.
  • I've heard some hypothesize that the CR is short for civilian rifle, some say it's short for colt rifle, others say commercial rifle. I don't pretend to know when or why colt has changed their serial numbers prefixes. I don't really care either.

Hi, I saw the thread which listed colt AR15 serial numbers, it seems to be the same one which is floating around in alot of places. I'm interested in buying a Colt Ar15-A3 Tactical Carbine model# 6721. Colt has been the most visible producer of ArmaLite AR-15 pattern weapons, and the military designations M16 & M4 are heavily associated with the company. Colt has an intricate internal nomenclature system for its models, with a variety of suffixes and prefixes. US Property marked XM16E1 Colt's and M16A1, both Colt Model 603. There are also a small number of US Air Force M16 Colt's Model 604 found in this serial number range. Serial numbers in this range were not run in order. M16A1’s have been observed with serial numbers as low as 604,505, and XM16E1’s have serial numbers as high as 741,12X.

You will have to call Colt and provide the serial number to find out.

What is date of manufacture of colt ar15 sp-1 serial?

No serial number given. You will have to call Colt.

What is the date of manufacture of a colt AR15 SP1 with the serial number of SP350358?

What is the manufacture date of a colt AR15 serial number BD002333?

What is the date of manufacture for a colt Ar15 A2 serial number Sp215464?

What is the date of manufacture of a colt ar15 serial number st 035210?

What is the manufacture date of a colt ar15 model sp1 serial number 25002?

What was the manufacture date of a colt AR15 serial number 017152?

Proofhouse.com has Colt sn tables. You can also call Colt and they will tell you.

What is the date of manufacture for a colt AR15 SP1 with a serial number of 46017?

What is the date of manufacture for a colt ar15 serial number mh012118?

What does the LE prefix in the serial number mean on colt ar15 m4?

What is the date of manufacture of a Colt AR15 SP1 with the serial number 200811?

Proofhouse.com has Colt sn tables. You can also call Colt and they will tell you.

What is the date of manufacture of a colt AR15 SP1 with the serial number of SP112087?

I have an SP1 I purchased new in 1978 with a 108,xxx serial number.

Can anyone help you if this is an authentic colt AR15 M16A1 Serial number 861606?

What is the manufacture date of a colt ar15 a2 sporter ii serial number 305210?

Proofhouse.com has Colt sn data. If not there, call Colt and they will tell you.

What is the manufacture date of a colt AR15 serial number 015914?

You must call Colt. The sn you list does follow normal conventions.

What is date of manufacture of colt AR15 serial sp200823?

What is the date of manufacture for a colt AR15 SP1 serial number SP48647?

What is the date of manufacture of a colt AR15 SP1 with a serial number of SP01773?

What is the value of a colt AR15 model R6551 serial number ST012549?

I bought one for $1100 in as new condition. Correction, preban.

What is value of a colt ar15 model sp1 serial sp22820?

What is the date of manufacture for a colt AR15 SP1 with a serial number of 128851?

Try proofhouse.com. BTW the SN should only have 5 numbers after SP.

What is the value of a Colt ar15 model sp1 serial spSP18981?

value depends on overall condition.........

What is the age of a colt SP-1 AR-15 223 SERIAL NUMBER SP52968 LOG 39035?

Try looking at this, it may give an idea. Artificial academy 2 download mediafire. http://biggerhammer.net/ar15/ar15serial.html Mike aka nfmMike @ ar15.com forums

Can you convert a colt 22 ar15 to 223?

If it is one of the recent Colt .22LR AR15 rifles, then the answer is no - they are completely different internally.

What is a colt pistol serial number G23633?

You will have to call Colt with the serial number to find out.

How old is a colt trooper with serial?

You will have to call Colt with the serial number.

How old is a colt model 1851 by serial number?

You will have to call Colt with the serial number to find out.

What is the date of colt pistols by serial number?

You will have to call Colt since you did not provid the serial number.

Production date of colt ar 15 with serial number 994989?

With that serial number, you will have to call Colt.

What is the model of a colt serial number G23633?

Colt Ar-15 A2 Gov T Carbine Serial Numbers Chart

No way to tell with just the serial number. You will have to call Colt.

What is the age of colt 25 pistol serial number 0048524?

What year is a colt 1911 serial?

You will have to call Colt or provide the serial number.

What is the age of a 41 Colt serial?

You will have to call Colt with the serial number to find out.

What year is Colt serial?

You must call Colt with the serial number to find out.

What is a Colt AR 15 SP1 serial?

No way to answer without the serial number. You can call Colt and they will tell you if you provide the serial number.

How old is my colt single action scout frontier .22 cal LR serial number 2095OK?

Proofhouse.com has Colt serial number tables. Proofhouse.com has Colt serial number tables.

What is the age of a colt frontier scout serial number 56599P?

Could not find a Colt frontier scout with serial number 56599P, but a Colt frontier scout with serial number 56599F was made in 1959.

Year of manufacture colt AR15 sp1 115569?

serial number 115569 in an SP 1 does not seem to exist specifically. 15569 is 1970 83400 is 1978 SP 360200 and lower are classified under 1978

Colt Ar-15 Serial Numbers By Year

When was the colt 44 revolver with serial number A14854 made?

Proofhouse.com has Colt serial number tables you can look at.

Colt Ar-15 A2 Gov't Carbine Serial Numbers

What is the age of a Colt revolver serial number dT9T22?

What Colt model? Serial number given, dT9T22 does not compute.

Where can you find the serial number on a Colt stagecoach rifle?

If your Colt Stagecoach was made from 1965 - 1968 it will not have a serial number.

Colt Ar-15 Serial Numbers And Dates

When would a Colt 357 serial number L32688 been manufactured?

The Colt with that serial number was made in 1976.

What year colt with serial number 70G10999?

Colt Ar15 Serial Numbers Manufacture Dates

A Colt 1911 commercial .45 with that serial number was made about 1971

Biggerhammer
SIG AMT/PE57/550
Stoner SR-25
Barrett .50
AR15/M16 FAQs
Bushmaster Armpistol
M96 Expeditionary
ANM2
HAC-7
Numbers

Colt Commercial Variants

This table is a mirror of a work in progress by Andy Krywonizka at http://come.to/ar15/ - For the most recent version of the table please visit Andy's site. - Many thanks to Andy for allowing the reproduction of his work here.
This table is intended to be used as a reference for the Colt-series of automatic rifles based on the AR-15 pattern. Currently the R6xxx and some of the military 3-digit series are covered, but not all of the information is complete. If you know something about the rifles listed or find an error, please e-mail me and I'll update the table. The colums I'm specifically seeking info on have violet-colored headers.

Click here for definitions of the terms used in this table.

Model No.
Model Name
Caliber
Barrel Length (in)
Barrel Contour
Barrel Twist
Weight (lbs)
Forward Assist?
Bayonet Lug?
Case Deflect?
Lower receiver
Rear Sight
Grip
Flash Hider
Buttstock
Pull (in)
Barrel Slipring
Handguard
Fire Control
Cyclic rate (rpm)
Added
Dropped
Comments
R6000AR-15 Sporter
(SP1)
.22320Standard 1:12'7.5NoYesNoA1 A1Straight 3-prong 13StraightSmooth triangular Safe, semiautomatic ---19641985
R6001AR-15 Sporter w/collapsible stock
(SP1 Carbine)
.22316Standard 1:12'5.8NoYesNoA1A1Straight Birdcage ---StraightRibbed shorty Safe, semiautomatic ---19771985
R6222AR-15
.22 LR Conversion Kit
.22 LR---------1.2--------------------------------- ---1990---
R6420AR-15 Carbine .22316Standard 1:7'5.8YesYesNoA1A2TaperedRibbed shorty Safe, semiautomatic ---19851987
R6430Sporter Lightweight 9x19mm16Standard 1:10'7.1NoYesNoA1A2TaperedRibbed shorty Safe, semiautomatic ---1992---Has special deflector
R6450AR-15 9mm Carbine9x19mm 16Standard1:10'6.3NoYesNoA1A2TaperedRibbed shorty Safe, semiautomatic ---19851987
R6500AR-15A2 .22320A21:7'7.8YesYesNoA1A1A2TaperedRibbed cylindrical Safe, semiautomatic ---19841988Also made in 1989 only
R6510AR-15A2.22220A21:7' (?)7.8YesYesNoA1A1A2TaperedRibbed cylindricalSafe, semiautomatic---Made for export to countries where .223 Rem was considered a military round
R6520AR-15A2 Gov't Model Carbine .22316Standard 1:7'5.8YesYesYesA1*A2A2TaperedRibbed shorty Safe, semiautomatic ---19881990
R6530Sporter Lightweight .22316Standard 1:7'6.7YesNoYesA1*A2A2TaperedRibbed shorty Safe, semiautomatic ---1991---
R6550AR-15A2 Gov't Model.22320A21:7'7.5YesYesYesA2*A2A2TaperedRibbed cylindrical Safe, semiautomatic ---19881990
R6551Sporter Target .22320A21:7'7.5YesNoYesA2*A2A2TaperedRibbed cylindrical Safe, semiautomatic ---1991---
R6600AR-15A2 H-BAR .22320HBAR1:7'8.0YesYesYesA2*A2A2TaperedRibbed cylindrical Safe, semiautomatic ---19861991
R6600DHAR-15A2 Delta H-BAR .22320HBAR1:7'10.0YesYesYesA2*A2A2TaperedRibbed cylindrical Safe, Semiautomatic ---198719903-9X scope, cheekpiece
R6601Sporter Match HBAR .22320HBAR1:7'8.0YesNoYesA2*A2A2TaperedRibbed cylindrical Safe, semiautomatic ---1991---
R6601DHSporter Match Delta HBAR .22320HBAR1:7'10.0YesNoYesA2*A2A2TaperedRibbed cylindrical Safe, semiautomatic ---199119923-9X scope, cheekpiece
R6700Sporter Competition HBAR .22320HBAR1:9'8.5YesNoYesA2A2 (detachable) A2TaperedRibbed cylindrical Safe, semiautomatic ---1992---
R6700CHSporter Competition HBAR (select) .22320HBAR1:9'10.5YesNoYesA2A2 (detachable) A2TaperedRibbed cylindrical Safe, semiautomatic ---1992---3-9X scope, cheekpiece
R6700DCSporter Conversion Kit .22320HBAR1:9'5.5YesNoYes---noneA2TaperedRibbed cylindrical Safe, semiautomatic ---1993---Flattop
R6830Sporter Lightweight 7.62x39mm 16HBAR1:12'7.5YesNoYesA2A2A2TaperedRibbed shorty Safe, semiautomatic ---1993---
R6850DCSporter Conversion Kit 7.62x39mm 16HBAR1:12'4.2YesNoYes---noneA2TaperedRibbed shorty Safe, semiautomatic ---1993---Flattop
R6851DCSporter Conversion Kit 7.62x39mm 20HBAR1:12'5.4YesNoYes---noneA2TaperedRibbed cylindrical Safe, semiautomatic ---1993---Flattop
R6900DCSporter Conversion Kit .22320HBAR1:9'5.8YesNoYes---A2A2TaperedRibbed cylindrical Safe, semiautomatic ---1993---
6339mm Submachine Gun9x19mm7Standard 1:10'5.4NoNoYesA2A1Grooved NoneTaperedSmooth cylindrical Safe, semiautomatic, full automatic 700-900 Mechanical buffer, flip-down front sight
633HB9mm Submachine Gun9x19mm7Standard 1:10'5.4NoNoYesA2A1Grooved NoneTaperedSmooth cylindrical Safe, semiautomatic, full automatic 700-900 Hydraulic buffer, flip-down front sight
6349mm Submachine Gun9x19mm7 or 10.5 Standard 1:10'5.4NoNoYesA2A1Grooved NoneTaperedSmooth cylindrical on 7' model, ribbed shorty on 10.5' model Safe, semiautomatic --- Flip-down front sight on 7' model
6359mm Submachine Gun9x19mm7 or 10.5 Standard 1:10'5.4NoNoYesA2A1Grooved NoneTaperedSmooth cylindrical on 7' model, ribbed shorty on 10.5' model Safe, semiautomatic, full automatic 700-900 on 7' model, 800-1000 on 10.5' modelFlip-down front sight on 7' model
6399mm Submachine Gun9x19mm7 or 10.5 Standard 1:10'5.4NoNoYesA2A1GroovedNoneTaperedSmooth cylindrical on 7' model, ribbed shorty on 10.5' model Safe, semiautomatic, 3-shot burst 700-900 on 7' model, 800-1000 on 10.5' model Flip-down front sight on 7' model
701M16A2 Rifle.22320HBAR1:7'7.9YesYesYesA2A2GroovedA213 5/8'TaperedRibbed cylindrical Safe, semiautomatic, full automatic700-950
705M16A2 Rifle.22320HBAR1:7'7.9YesYesYesA2A2GroovedA213 5/8'TaperedRibbed cylindrical Safe, semiautomatic, 3-shot burst 700-950 Standard U.S. Military service rifle
715M16A2 Rifle.22320HBAR1:7'7.9YesYesYesA2A1Grooved A213 5/8'TaperedRibbed cylindricalSafe, semiautomatic, full automatic700-950
719M16A2 Rifle.22320HBAR1:7'7.9YesYesYesA2A1Grooved A213 5/8'Tapered Ribbed cylindricalSafe, semiautomatic, 3-shot burst 700-950
720M16A2 (M4) Carbine.22314.5HBAR stepped1:7'5.7YesYesYesA2A1 or A2Grooved A2TaperedRibbed shorty Safe, semiautomatic, full automatic or 3-shot burst700-950
727M16A2 Carbine.22314.5HBAR stepped1:7'5.7YesYesYesA2A2Grooved A2TaperedRibbed shortySafe, semiautomatic, full automatic 700-950
733M16A2 Commando.22311.5HBAR1:7'5.4YesYesYesA2A2Grooved A2TaperedRibbed shortySafe, semiautomatic, full automatic700-1000
735M16A2 Commando.22311.5HBAR1:7'5.4YesYesYesA2A2Grooved A2TaperedRibbed shorty Safe, semiautomatic, 3-shot burst700-1000
750M16A2 Light Machine Gun .22320MG HBAR 1:7'12.8NoNoYesA2A2GroovedA213 5/8'TaperedSquare LMGSafe, full automatic 600-750Bipod, front grip, carry handle, fires from open bolt
Sources: American Rifleman, June 1993, page 80; Colt Datasheets for the M16 Family of Weapons, Colt's Manufacturing Company, Inc.

1 - Colt built several thousand 'bastardized'AR-15's using different lower receivers but the same model number. Dependingon the date of manufacture it may have an A1 or an A2 lower receiver.There doesn't seem to be a definitive list of which rifles have which receiver,or when Colt began using strictly A2 receivers for their AR-15's.

Colt M16 Rifle Models

Courtesy Janes Infantry Weapons 1997/98, and Small Armsof the World (1983) by Edward C. Ezell.
Model
Number
Model Name Description Roll Marked (left)Roll Marked (right)
601AR-15AR-15 rifleColt
Armalite AR15
Patents Pending
Cal. .223
Model 01
Serial 0000000
602AR-15AR-15 rifle. Early US Government purchase - no forwardassist.Colt AR-15
Property of US Gov't
Cal. .223
Model 02
Serial 0000000
603M16A1M16A1 rifle. Originally the XM16E1. Standard US Governmentmodel with forward assist. Property of US Gov't
M16A1 Cal 5.56mm
0000000
603KM16A1M16A1 rifle. Produced for South Korea.M16A1
K0000000
Made in Korea
Under License from Colt's, Hartford, CT.
U.S.A.
604M16M16 rifle. Produced for US Air Force without forwardassist.Property of US Gov't
M16 Cal 5.56mm
0000000
605AM16 carbine. Carbine version of M16A1 rifle with forwardassist and fixed buttstock.
605BM16 carbine. Same as Model 605A but with additional three-roundburst limiter; no forward assist.
606HBARHeavy Barrel Assault Rifle (HBAR) without forward assist.Also known as the Heavy Assault Rifle M1.Mod 606 Cal 5.56mm
0000000
606AHeavy Barrel Assault Rifle (HBAR) with forward assist.
606BHeavy Barrel Assault Rifle (HBAR) with forward assistand three-round burst limiter.
607Submachine gun with sliding buttstock and 10' (254 mm)barrel.
608CAR-15 survival rifle with 10' (254 mm) barrel and fixedtubular buttstock. About 10 produced.
609SMG #1
XM177E1
Commando
XM177E1 submachine gun for US Army with 10' (254 mm)barrel and 3.5' (89 mm) long sound/flash suppressor.Property of US Gov't
Commando Cal 5.56mm
0000000
610S.M.G. #2
XM177
XM177E1 submachine gun for US Air Force with 10' (254mm) barrel.Property of US Gov't
SMG 5.56mm
0000000
610BXM177E1 submachine gun for US Air Force with additionof three-round burst limiter.
611HBARHeavy Barrel Assault Rifle. Export model of Model 606.Mod 611 Cal 5.56mm
0000000
611PHBARHeavy Barrel Assault Rifle. Export model of Model 611for the Philippines.Made by Elisco Tool for the Republic of The Phillipines
M16A1
RP0000000
Made in the Phillipines
Under License from
Colt's, Hartford, CT.
U.S.A.
613AR-15M16A1 rifle. Export version of Model 603.Mod 613 Cal 5.56mm
0000000
613PAR-15M16A1 rifle. Export version of Model 613 for the Philippines.Made by Elisco Tool for the Republic of The Phillipines
M16A1
RP0000000
Made in the Phillipines
Under License from
Colt's, Hartford, CT.
U.S.A.
614AR-15M16 rifle. Export version of Model 604 without forwardassist.Mod 614 Cal 5.56mm
0000000
614SAR-15M16 rifle. Export version of Model 614 license producedby Chartered Industries of Singapore.C I S
Made in Singapore by Chartered Industries of SingaporeLimited
Under License from Colt Industries
Hartford, Conn, USA
Patented
616HBARHeavy Barrel Assault Rifle. Export version of Model 606.Property of US Gov't
Mod 616 Cal 5.56mm
0000000
619S.M.G.Submachine gun. Export version of Model 609.Mod 619 Cal 5.56mm
0000000
620S.M.G.Submachine gun. Export version of Model 610.Mod 620 Cal 5.56mm
0000000
621HBARHeavy Barrel Assault Rifle. Heavy barrel version of Model603.Property of US Gov't
Mod 621 Cal 5.56mm
0000000
629XM177E2XM177E2 submachine gun for US Army with 11.5' (292 mm)barrel and 4.5' (114 mm) long sound/flash suppressor.Property of US Gov't
XM177E2
Cal 5.56mm
0000000
630Submachine gun for US Air Force without forward assistand 11.5' barrel.
6339 mm submachine gun with 7' (178 mm) barrel and mechanicalbuffer.
633HB9 mm submachine gun with 7' (178 mm) barrel and hydraulicbuffer.
6349 mm submachine gun with 10.5' (267 mm) barrel, withoutforward assist.
6359 mm submachine gun with 10.5' (267 mm) barrel, withoutforward assist.
639S.M.G.Submachine gun. Export version of Model 629.Mod 639 Cal 5.56mm
0000000
640S.M.G.Submachine gun. Export version of Model 629 without forwardassist.Mod 640 Cal 5.56mm
0000000
645M16A2 rifle. Standard US Government model with revised1 in 7' (1 in 177.8 mm) rifling, 20' (508 mm) barrel and new rear sight.
645EM16A2 rifle 'Enhanced'. Modified M16A2 with removablecarrying handle for optical sight mounting and flip-up front sight.
649S.M.G.Sumachine gun. For US Air Force, with 14' (356 mm) barreland 1 in 12' (1 in 305 mm) rifling. Property of US Gov't
GAU-5/A/A Cal 5.56mm
0000000
651M16A1 carbine. Export model with 14.5' (368 mm) barreland full size stock.
652M16A1 carbine. Export model with 14.5' (368 mm) barreland full size stock, but without forward assist.
653M16A1 carbine. Export model with 14.5' (368 mm) barreland sliding stock.
653PM16A1 carbine. Export model with 14.5' (368 mm) barreland sliding stock, license produced in the Philippines.Made by Elisco Tool for the Republic of the Phillipines
M16A1
RP0000000
MAde in the Phillipines
Under License from
Colt's, Hartford, CT.
U.S.A.
654M16 carbine. Export model without forward assist. Fittedwith 14.5' (368 mm) barrel and sliding stock.
655M16A1 sniper rifle. Experimental model with high profileupper receiver.
656M16A1 sniper rifle. Experimental model with low profileupper receiver and Sionics suppressor.
701M16A2 rifle. Export model with full automatic in placeof three-round burst limiter.
702M16A2 rifle. Export model for United Arab Emirates withM16A1 rear sights and full automatic in place of three-round burst limiter.
703M16A2 rifle. Export model for the United Arab Emirateswith M16A1 barrel profile and full automatic in place of three-round burstlimiter.
705M16A2 rifle. Export model with full automatic in placeof three-round burst limiter. Also known as M16A2E3.
707M16A2 rifle. Export model with three-shot burst limiterand M16A1 barrel profile.
711M16A2 rifle. Export model with M16A1 rear sight and M16A1barrel profile.
715M16A2 rifle. Canadian version of M16A2 rifle known asC7 with M16A1 rear sight and M16A2 barrel. License produced by Diemaco.
719M16A2 rifle. Version of Model 715 produced by Colt withthree-round burst limiter.
720M4 carbine. Originally known as M16A2 carbine, with 14.5'(370 mm) barrel.
723M16A2 carbine. Produced for United Arab Emirates andUS Army Delta Force. With M16A1 rear sight, 14.5' (370 mm) barrel and fullautomatic fire capability.
725M16A2 carbine. Canadian version of M16A2 carbine knownas C8 with M16A1 rear sight and M16A2 barrel. License produced by Diemaco.
725AM16A2 carbine. Export version of the M16A2 carbine producedby Colt for United Arab Emirates with M16A1 barrel profile.
725BM16A2 carbine. Export version of M16A2 carbine with M16A2barrel.
727M16A2 carbine. Carbine with full automatic fire featureproduced for (among others) the US Navy. With 14.5' (370 mm) barrel.
733M16A2 Commando. Short-barrelled model with full automaticfire, 11.5' (290 mm) barrel and M16A1 rear sight.
733AM16A2 Commando. Short-barrelled model with three-roundburst limiter in place of full automatic fire, 11.5' (290 mm) barrel andM16A1 rear sight.
735M16A2 Commando. Similar to Model 733 but with three-roundburst limiter.
737M16A2 Heavy Barrel Assault Rifle (HBAR). With M16A1 rearsight.
741M16A2 Heavy Barrel Assault Rifle (HBAR). As Model 737but with M16A2 rear sight.
750M16A2 Squad Automatic Weapon (SAW). With 20' (508 mm)barrel, bipod and front handguard assembly. Fully automatic.
901M16A3 rifle. Similar to Model 701 but with flat top railunder carrying handle. Fully automatic.
905M16A3 rifle. Similar to Model 705 but with flat top railunder carrying handle. Three-round burst limiter.
925M16A3 rifle. Similar to Model 725 but with flat top railunder carrying handle. Three-round burst limiter.
927M4A1 carbine. Originally known as M16A3 carbine. Similarto Model 727 but with flat top rail under carrying handle. Fully automatic.In production for Joint DoD Special Forces.
941M16A3 Heavy Barrel Assault Rifle (HBAR). Similar to Model741 but with flat top rail under carrying handle. Semi and fully automatic.
942M16A3 Squad Automatic Weapon (SAW). Similar to Model741 but with flat top rail under carrying handle. Fully automatic only.
950M16A3 Squad Automatic Weapon (SAW). Similar to Model741 but with flat top rail under carrying handle. Fully automatic only.


Definitions

Barrel terms

HBAR: Heavy BARrel,Heavy Barrelled AR, Heavy Barrelled Automatic Rifle, Heavy Barrel AssaultRifle
.223: .223 Remington, 5.56 x 45 mm NATO cartridge
9x19mm: 9 mm Parabellum cartridge
.22 LR: .22 Long Riflerimfire cartridge
1:7': Riflingin the barrel twists clockwise, with any one groove making a complete revolutionevery seven (7)
inches (178 mm).
1:9': Riflingin the barrel twists clockwise, with any one groove making a complete revolutionevery nine (9)
inches (229 mm).
1:10': Riflingin the barrel twists clockwise, with any one groove making a complete revolutionevery ten (10)
inches (254 mm).
1:12': Riflingin the barrel twists clockwise, with any one groove making a complete revolutionevery twelve
(12) inches (305 mm).

Barrel contour/slip ring/handguard terms

Standard: Original thin barrelstyle. Did not stand up to prolonged firing very well giving reducedaccuracy.
A2: Later style of barrel that was tapered at the front sight to thicken theexposed barrel. Apparently to
strengthen the barrel to avoid bending when G.I.'s used it as a pry bar.
HBAR: Lateststyle of barrel that is the same thickness the enitre length through, ratherthan just the exposed
section. Stands up to heat well and gives better accuracy.
HBAR
stepped: New barrel for the M4 carbine designed specifically with a 'step' to accomodatethe M203 grenade
launcher.
Straight: Slip ringretainer between the handguard and the upper receiver that has a straightcylindrical shape.
Typically found only on early AR-15 and M-16 rifles with A1 upper receivers.
Tapered: Slip ring retainer between the handguard and the upper receiver that hasa slight conical shape. Used on
all new AR-15 and M-16 rifles.
Smooth
triangular: The original handguard usedon early AR-15 and M-16 rifles. Still commonly seen today, not usedon
newer rifles. The handguard is a smoothened triangle shape with vent holesat the top.
Ribbed
cylindrical:Newerhandguard used on all modern AR-15 and M-16 rifles. Cylindrical ratherthan triangular, it has
vertical ribs along the entire length of the handguard for better grip. Vent holes are along the top and
bottom.
Ribbed
shorty:Identicalto the Ribbed cylindrical handguard found on modern AR-15 and M-16 rifles,the shorty
handguard differs only by being shorter to accomodate shorter barrel lengths.
Smooth
cylindrical: Special handguard found only on the7' barrel of the 9mm Model 633. It has no ribs and is smooth
along its entire length.
Square
LMG:Bulky square handguard used on the M16A2 MachineGun to vent heat as efficiently and quickly as
possible. Has several holes in the top and bottom to accomodate specialattachments such as a vertical
foregrip and carrying handle.

Flash hider terms

3-prong: Vietnam-era flash suppressorwith three slits and an open front end. Soon changed to closed endafter
vegetation frequently got caught in the prongs.
Birdcage:Newerstyle of flash suppressor that has six openings with a closed front end. Changed to A2-style to
prevent dust kickup when firing.
A2-style:LatestColt flash suppressor that has five openings (two to either side, two diagonallyupwards, and one up) and
a closedfront end. The lack of holes in thebottom of the suppressor avoids kicking up dust when firing.
Vortex: A highly efficient flash suppressor that eliminates all muzzle flash evenfrom very short barrels. Typically
four-pronged and 1/2' longer than the 3-prong suppressor. Newer modelshave the prongs twisted
slightly counterclockwise.

Sight style terms

A1: Original style rear sight that was adjustable for windage only. Adjustmentsrequired the use of a tool or
bullet tip. Flip-type aperatures for short and long-range shootingare provided, the ranges depending on
the firearm.
A2:Newer style rear sight that is adjustable forwindage and elevation up to 800 meters, and requires no tools
for adjustment.

Receiver terms

Colt

A1: The original, non-reinforced, slab-sided lower receiver with the exposed magazine release button. Easily recognizable by the smooth right side. Usually accompanied by a straight pistol grip.
A2: Newerlower receiver with reinforcing around the magazine well and a 'fence'around the magazine release button.
Flattop: New style of receiver that lacks the carry handle. Allows for themounting of a wide variety of optical
sighting devices and accessories.

Grip terms

Straight: First production pistol grip. Was straight and had no notches or contours for the fingers or the hand.
Grooved: Later production pistol grip, nowstandard on all new AR-15 and M-16 rifles. Slightly thicker gripwith
a notch for the middle finger for a better grasp.


This page copyright (C) Andrew Krywonizka, 1998-1999. All rights reserved. This page may not be reproduced, mechanically or electronically or otherwise, without express written consent from the author. The Colt logo is a registered trademark of Colt's Manufacturing Company, Inc.

Last Modified on September 24, 1999
aalbert@biggerhammer.net

Coments are closed