This article includes a, related reading or, but its sources remain unclear because it lacks. Please help to this article by more precise citations. (March 2016) This article is a review of many variations of the family of weapons produced. Weapons patterned on the original have been produced by numerous manufacturers and have been used by nations around the world, some of which created their own variations.

• Colt Serial Number Research
• Colt Sp1 Value
• Colt Sp1 Carbine Value

The tables here are split in a variety of categories, and provide an overview of different subtypes. For purposes of these tables, bold model numbers are weapons used (or previously used) by the while italic model numbers are weapons for commercial or export sale. See for an explanation of each column. Contents. Numbered Colt military models Colt has been the most visible producer of weapons of the AR-15 pattern, and the military designation M16 is heavily associated with the company. Colt has an intricate internal nomenclature system for its models, with a variety of suffixes and prefixes. Colt’s systems have generally followed the times and though its model numbers originally came without prefixes, with the need to separate weapons made for civilian consumption from those made for military and law enforcement use, military models became prefixed with the code 'RO'.

For the purposes of this table, the RO nomenclature is obviated as this terminology did not exist in all cases, but it can be understood to be present. Military/LE models are also easily identified by their three digit code in contrast to the four digit codes for civilian weapons. Also, for the early Colt made, the charging handle was located within the carrying handle. Colt model no.

Started in 1912, the M1911 Commercial and its A1 variant got normal serial numbers with a simple prefix (or suffix). But in mid 1970, the serial numbers are not a continuation of the previous ones. Instead, now they have a “70” as the first two digits. The numbers style remains up until mid-1976 before the “70” is moved to the last two digits. Year Serial Number Range 1963 SP00001-SP SP SP SP SP SP SP14000-SP SP15001-SP SP SP SP SP SP SP55301. COLT SP1 SP 1 AR15 AR 15 PRE BAN MINT Waukesha, WI: Used: $1,355.00: COLT SP1 223 PREBAN AR15 1971 RARE AR 15 1970'S Vernal, UT: Used: $1,752.00: COLT SP1 223 CARBINE 16 AR 15 SP 1 AR15 1982 Winston Salem, NC: Used: $1,815.55: PREBAN COLT SP 1 CARBINE 223 SEMI AUTO 1982 Edinboro, PA: Used: $1,785.00: COLT SP1 CARBINE PREBAN AR15 1980 Nicholasville, KY: Used: $1,476.00.

Name Stock Fire control Rear sight Forward assist Case deflector Barrel length Barrel profile Barrel twist Hand guards Bayonet Lug Muzzle device 601 A1 S-1-F A1 No No 20 in. A1 1:14 (early) or 1:12 (late) Triangular Yes Type 1 Duckbill/Type 2 Duckbill 602 A1 S-1-F A1 No No 20 in. A1 1:12 Triangular Yes Type 2 Duckbill 603 A1 S-1-F A1 Yes No 20 in. A1 1:12 Triangular Yes Type 2 Duckbill 603 A1 S-1-F A1 Yes No 20 in.

A1 1:12 Triangular Yes A1 604 M16 A1 S-1-F A1 No No 20 in. A1 1:12 Triangular Yes A1 605 A1 S-1-F A1 No No 15 in. A1 1:12 Triangular No Type 2 Duckbill 605A A1 S-1-F A1 Yes No 15 in.

A1 1:12 Triangular No Type 2 Duckbill 605B A1 S-F-1-3 A1 No No 15 in. A1 1:12 Triangular No Type 2 Duckbill 606 A1 S-1-F A1 No No 20 in.

HBAR 1:12 Triangular Yes Type 2 Duckbill 606A A1 S-1-F A1 Yes No 20 in. HBAR 1:12 Triangular Yes Type 2 Duckbill 606B A1 S-F-1-3 A1 Yes No 20 in. HBAR 1:12 Triangular Yes Type 2 Duckbill 607 1st Generation S-1-F A1 No No 10 in. A1 1:12 Short Triangular No Type 1 and 2 Duckbill and 3.5' Moderator 607A 1st Generation S-1-F A1 Yes No 10 in.

A1 1:12 Short Triangular No Type 1 and 2 Duckbill and 3.5' Moderator 607B 1st Generation S-F-1-3 A1 No No 10 in. A1 1:12 Short Triangular No Type 1 and 2 Duckbill and 3.5' Moderator 608 Tubular S-1-F A1 No No 10 in. A1 1:12 Short Round No Conical or 3.5' Moderator 609 2nd Generation S-1-F A1 Yes No 10 in. A1 1:12 Short Ribbed No 3.5' or 4.5' Moderator 610 2nd Generation S-1-F A1 No No 10 in. A1 1:12 Short Ribbed No 3.5' or 4.5' Moderator 610B 2nd Generation S-F-1-3 A1 No No 10 in.

A1 1:12 Short Ribbed No 3.5' or 4.5' Moderator 611 A1 S-1-F A1 Yes No 20 in. HBAR 1:12 Triangular Yes A1 611P (License produced by Elisco Tools) A1 S-1-F A1 Yes No 20 in. HBAR 1:12 Triangular Yes A1 613K (Licensed produced by Daewoo Precision Industries) A1 S-1-F A1 Yes No 20 in. A1 1:12 Triangular Yes A1 613P (License produced by Elisco Tools) A1 S-1-F A1 Yes No 20 in. A1 1:12 Triangular Yes A1 614 A1 S-1-F A1 No No 20 in.

A1 1:12 Triangular Yes A1 614S (License produced by Chartered Arms Singapore) A1 S-1-F A1 No No 20 in. A1 1:12 Triangular Yes A1 615 A1 S-1-F A1 No No 20 in. HBAR 1:12 Triangular Yes A1 616 A1 S-1-F A1 No No 20 in. HBAR 1:12 Round Yes A1 619 2nd Generation S-1-F A1 Yes No 10 in. A1 1:12 Short Ribbed No 3.5' or 4.5' Moderator 620 2nd Generation S-1-F A1 No No 10 in.

A1 1:12 Short Ribbed No 3.5' or 4.5' Moderator 621 A1 S-1-F A1 Yes No 20 in. HBAR 1:12 Triangular Yes A1 629 2nd Generation S-1-F A1 Yes No 11.5 in. A1 1:12 Short Ribbed No 4.5' Moderator 630 2nd Generation S-1-F A1 No No 11.5 in. A1 1:12 Short Ribbed No 4.5' Moderator 633 2nd Generation S-1-F A1 No Yes 7 in. A1 1:10 Short Round No None 634 2nd Generation Conflict between S-1 and S-1-F A1 No Yes 10 in.

A1 1:10 Short Ribbed No A2 635 2nd, 3rd, or 4th Generation S-1-F A1 No Yes 10 in. A1 1:10 Short Ribbed No A2 635S 2nd Generation S-1-F A1 No Yes 10 in. A1 w/ integral 1:10 Short Ribbed No A2 639 2nd Generation S-1-F A1 Yes No 11.5 in. A1 1:12 Short Ribbed No 4.5' Moderator or A1 639 2nd S-1-3 A1 No Yes 10 in. A1 w/ integral 1:10 Short Ribbed No A2 640 2nd Generation S-1-F A1 No No 11.5 in. A1 1:12 Short Ribbed No 4.5' Moderator or A1 645 A2 S-1-3 A2 Yes Yes 20 in.

A2 1:7 Ribbed Yes A2 645E Flattop (w/ flip down front sight) S-1-3 A2 Yes Yes 20 in. A2 1:7 Ribbed Yes A2 646 A2 S-1-F A2 Yes Yes 20 in. A2 1:7 Ribbed Yes A2 649 2nd Generation S-1-F A1 No No 11.5 in. A1 1:12 Short Ribbed No 4.5' Moderator 650 A1 S-1-F A1 Yes No 14.5 in. A1 1:12 Short Ribbed Yes A1 651 A1 S-1-F A1 Yes No 14.5 in.

A1 1:12 Short Ribbed Yes A1 652 A1 S-1-F A1 No No 14.5 in. A1 1:12 Short Ribbed Yes A1 653 2nd Generation S-1-F A1 Yes No 14.5 in. A1 1:12 Short Ribbed Yes A1 653P (License produced by Elisco Tools) 2nd Generation S-1-F A1 Yes No 14.5 in. A1 1:12 Short Ribbed Yes A1 654 2nd Generation S-1-F A1 No No 14.5 in. A1 1:12 Short Ribbed Yes A1 655 A1 S-1-F A1 (used with special raised carry handle scope mount) Yes No 20 in.

HBAR 1:12 Triangular Yes A1 656 A1 S-1-F Flattop Yes No 20 in. HBAR 1:12 Triangular Yes A1 701 A2 S-1-F A2 Yes Yes 20 in. A2 1:7 Ribbed Yes A2 702 A2 S-1-3 A2 Yes Yes 20 in. A2 1:7 Ribbed Yes A2 703 A2 S-1-F A2 Yes Yes 20 in. A1 1:7 Ribbed Yes A2 705 A2 S-1-3 A2 Yes Yes 20 in. A2 1:7 Ribbed Yes A2 707 A2 S-1-3 A2 Yes Yes 20 in. A1 1:7 Ribbed Yes A2 711 A2 S-1-F A1 Yes No and Yes 20 in.

A1 1:7 Ribbed Yes A2 713 A2 S-1-3 A2 Yes Yes 20 in. A2 1:7 Ribbed Yes A2 715 (License produced by / as the ) A2 S-1-F A1 Yes Yes 20 in. A2 1:7 Ribbed Yes A2 719 A2 S-1-3 A2 Yes Yes 20 in.

A1 1:7 Ribbed Yes A2 720 3rd Generation S-1-3 A2 Yes Yes 14.5 in. M4 1:7 Short Ribbed Yes A2 723 3rd Generation S-1-F A1 Yes Yes 14.5 in. A1 1:7 Short Ribbed Yes A1 725 (License produced by / as the ) 3rd Generation S-1-F A1 Yes Yes 14.5 in.

A1 1:7 Short Ribbed Yes A2 725A 3rd Generation S-1-F A1 Yes Yes 14.5 in. A1 1:7 Short Ribbed Yes A2 725B 3rd Generation S-1-F A1 Yes Yes 14.5 in.

A2 1:7 Short Ribbed Yes A2 726 3rd Generation S-1-F A1 Yes Yes 14.5 in. A1 1:7 Short Ribbed Yes A1 727 3rd Generation S-1-F A2 Yes Yes 14.5 in. M4 1:7 Short Ribbed Yes A2 728 3rd Generation S-1-F A2 Yes Yes 14.5 in. M4 1:7 Short Ribbed Yes A2 733 / 3rd or 4th Generation S-1-F A1 or A2 Yes Yes or No 11.5 in. A1 or A2 1:7 Short Ribbed No A1 or A2 733A / 3rd or 4th Generation S-1-3 A1 or A2 Yes Yes or No 11.5 in. A1 or A2 1:7 Short Ribbed No A1 or A2 734 3rd Generation S-1-F A1 or A2 Yes Yes or No 11.5 in. A1 or A2 1:7 Short Ribbed No A1 or A2 734A 3rd Generation S-1-3 A1 or A2 Yes Yes or No 11.5 in.

A1 or A2 1:7 Short Ribbed No A1 or A2 735 / 3rd or 4th Generation S-1-3 A1 or A2 Yes Yes or No 11.5 in. A1 or A2 1:7 Short Ribbed No A1 or A2 737 A2 S-1-3 A2 Yes Yes 20 in. HBAR 1:7 Ribbed Yes A2 738 4th Generation S-1-3-F A2 Yes Yes 11.5 in.

A2 1:7 Short Ribbed No A1 or A2 741 A2 S-1-F A2 Yes Yes 20 in. HBAR 1:7 Ribbed Yes A2 742 (Standard w/ bipod) A2 S-1-F A2 Yes Yes 20 in. HBAR 1:7 Ribbed Yes A2 745 (Standard w/ bipod) A2 S-1-3 A2 Yes Yes 20 in. HBAR 1:7 Ribbed Yes A2 746 (Standard w/ bipod) A2 S-1-3 A2 Yes Yes 20 in.

Colt Serial Number Research

HBAR 1:7 Ribbed Yes A2 750 (Colt/ project) A2 S-F A2 Yes Yes 20 in. HBAR 1:7 Square LMG Yes A2 777 4th Generation S-1-3 A2 Yes Yes 14.5 in. M4 1:7 M4 Yes A2 778 4th Generation S-1-3-F A2 Yes Yes 14.5 in. M4 1:7 M4 Yes A2 779 4th Generation S-1-F A2 Yes Yes 14.5 in. M4 1:7 M4 Yes A2 901 A2 S-1-F Flattop Yes Yes 20 in.

A2 1:7 Ribbed Yes A2 905 A2 S-1-3 Flattop Yes Yes 20 in. A2 1:7 Ribbed Yes A2 920 3rd and 4th Generation S-1-3 Flattop Yes Yes 14.5 in. M4 1:7 M4 Yes A2 921 4th Generation S-1-F Flattop Yes Yes 14.5 in. M4 1:7 M4 Yes A2 921HB 4th Generation S-1-F Flattop Yes Yes 14.5 in.

M4 HBAR 1:7 M4 Yes A2 925 3rd or 4th Generation S-1-3 Flattop Yes Yes 14.5 in. M4 1:7 M4 Yes A2 927 4th Generation S-1-F Flattop Yes Yes 14.5 in.

M4 1:7 M4 Yes A2 933 4th Generation S-1-F Flattop Yes Yes 11.5 in. A1 or A2 1:7 Short Ribbed No A2 935 4th Generation S-1-3 Flattop Yes Yes 11.5 in. A1 or A2 1:7 Short Ribbed No A2 938 4th Generation S-1-3-F Flattop Yes Yes 11.5 in. A2 1:7 M4 No A2 977 4th Generation S-1-3 Flattop Yes Yes 14.5 in. M4 1:7 M4 Yes A2 941 A2 S-1-F Flattop Yes Yes 20 in. HBAR 1:7 Ribbed Yes A2 942 (Standard w/ bipod) A2 S-1-F Flattop Yes Yes 20 in. HBAR 1:7 Ribbed Yes A2 945 A2 S-1-3 Flattop Yes Yes 20 in.

A2 1:7 Ribbed Yes A2 950 (Colt/ project) A2 S-F Flattop Yes Yes 20 in. HBAR 1:7 Square LMG Yes A2 '977' 4th Generation S-1-3 Flattop Yes Yes 14.5 in. M4 1:7 M4 Yes A2 978 4th Generation S-1-3-F Flattop Yes Yes 14.5 in.

M4 1:7 M4 Yes A2 979 4th Generation S-1-F Flattop Yes Yes 14.5 in. M4 1:7 M4 Yes A2 991 4th Generation S-1-F Flattop Yes Yes 10.5 in. A1 1:10 Short Ribbed No A2 992 4th Generation S-1-3 Flattop Yes Yes 10.5 in. A1 1:10 Short Ribbed No A2 Colt model no. Name Stock Fire control Rear sight Forward assist Case deflector Barrel length Barrel profile Barrel twist Hand guards Bayonet Lug Muzzle device Numbered Colt civilian models Colt’s civilian line is identified by a four digit code following a specific prefix.

Initially all Colt civilian weapons were listed with an “R” prefix, with this changing to “AR” following the passage of the in 1994. Colt also produced a line of weapons aimed at target shooters under the “MT” prefix, which stood for Match Target, as well as, the Colt Accurized Rifle, which was the only model to feature the CR prefix. Most recently with the shift in marketing policy by, these weapons have been given the “LE” and 'LT' prefix. The 'LT' series is modified version of the Colt 6720 featuring a lightweight 'pencil' barrel with a free floating rail system. Only 1500 of the 'LT' series were produced. Currently, Colt Defense has no line targeted specifically at the private civilian market. R series models Colt model no.

Name Stock Fire control Rear sight Forward assist Case deflector Barrel length Barrel profile Barrel twist Hand guards Bayonet Lug Muzzle device R6000 AR-15 Sporter (SP1) A1 S-1 A1 No No 20 in. A1 1:12 Triangular Yes Type 2 Duckbill or A1 R6001 AR-15 Sporter Carbine (SP1 Carbine) 2nd Generation S-1 A1 No No 16 in.

A1 1:12 Short Ribbed Yes A1 R6002 AR-15 Sporter (SP1; Bundled with 3x scope) A1 S-1 A1 No No 20 in. A1 1:12 Triangular Yes A1 R6003 AR-15 Sporter Carbine (SP1 Carbine; Bundled with 3x scope) 2nd Generation S-1 A1 No No 16 in. A1 1:12 Short Ribbed Yes A1 R6004 AR-15 Sporter (SP1; Bundled with Colt Reflex Sighting System) A1 S-1 A1 No No 20 in. A1 1:12 Triangular Yes A1 R6420 AR-15A2 Sporter II Carbine 3rd Generation S-1 A1 Yes No & Yes 16 in. A1 1:7 Short Ribbed Yes A2 R6430 Sporter Lightweight (9 mm) A2 S-1 A1 No Removable 16 in. A1 1:10 Short Ribbed Yes A1 R6450 AR-15 9 mm Carbine 3rd Generation S-1 A1 No No & Removable 16 in.

A1 1:10 Short Ribbed Yes A1 R6500 AR-15A2 Sporter II A2 S-1 A1 Yes No & Yes 20 in. A2 1:7 Ribbed Yes A2 R6510 AR-15A2 Sporter II (Special export model in.222 Remington) A2 S-1 A2 Yes No 20 in. A2 1:12 Ribbed Yes A2 R6520 AR-15A2 Government Carbine 3rd Generation S-1 A2 Yes Yes 16 in. A1 1:7 Short Ribbed Yes A2 R6521 Colt Carbine (AR-15A2 Government Carbine) (Special export model with receiver block and large pin upper receiver) 3rd Generation S-1 A2 Yes Yes 16 in. A1 1:7 Short Ribbed Yes/No A2 R6530 Sporter Lightweight.223 3rd Generation S-1 A2 Yes Yes 16 in. A1 1:7 Short Ribbed No A2 R6550 AR-15A2 Government A2 S-1 A2 Yes Yes 20 in. A2 1:7 Ribbed Yes A2 R6550CC AR-15A2 Government (w/ factory camouflage finish) A2 S-1 A2 Yes Yes 20 in.

A2 1:7 Ribbed Yes A2 R6550K AR-15A2 Government (w/ factory installed.22 Long Rifle conversion kit) A2 S-1 A2 Yes Yes 20 in. A2 1:7 Ribbed Yes A2 R6551 Sporter Target A2 S-1 A2 Yes Yes 20 in. A2 1:7 Ribbed No A2 R6600 AR-15A2 HBAR A2 S-1 A2 Yes Yes 20 in.

HBAR 1:7 Ribbed Yes A2 R6600DH AR-15A2 Delta HBAR (bundled w/ Tasco 3–9x scope and cheekpiece) A2 S-1 A2 Yes Yes 20 in. HBAR 1:7 Ribbed Yes A2 R6600K AR-15A2 HBAR (w/ factory installed.22 Long Rifle conversion kit) A2 S-1 A2 Yes Yes 20 in. HBAR 1:7 Ribbed Yes A2 R6601 Sporter Match HBAR A2 S-1 A2 Yes Yes 20 in. HBAR 1:7 Ribbed No A2 R6601DH Sporter Match Delta HBAR (bundled w/ Tasco 3–9x scope and cheekpiece) A2 S-1 A2 Yes Yes 20 in. HBAR 1:7 Ribbed No A2 R6700 Sporter Competition HBAR A2 S-1 Flattop Yes Yes 20 in. HBAR 1:9 Ribbed No A2 R6700CH Sporter Competition HBAR (bundled w/ Tasco 3–9x scope and cheekpiece) A2 S-1 Flattop Yes Yes 20 in.

HBAR 1:9 Ribbed No A2 R6700S Sporter Competition HBAR (bundled w/ Tasco 3–9x scope) A2 S-1 Flattop Yes Yes 20 in. HBAR 1:9 Ribbed No A2 R6701 Sporter Competition HBAR (Special limited edition production run) A2 S-1 Flattop Yes Yes 20 in.

HBAR 1:9 Ribbed No A2 R6721 AR-15A3 Tactical Carbine 4th Generation S-1 A2 Yes Yes 16 in. HBAR 1:9 Short Ribbed Yes A2 R6724 Sporter Competition HBAR A2 S-1 Flattop Yes Yes 24 in.

HBAR 1:9 Ribbed No A2 R6731 AR-15A3 Competition HBAR A2 S-1 A2 Yes Yes 16 in. HBAR 1:9 Short Ribbed No A2 R6750 Sporter Competition HBAR (bundled w/ bipod) A2 S-1 A2 Yes Yes 20 in. Super-Heavy 1:7 Ribbed No A2 R6821 Sporter Carbine (7.62×39mm) 3rd Generation S-1 A2 Yes Yes 16 in. HBAR 1:12 Short Ribbed No A1 R6830 Sporter Lightweight (7.62×39mm) A2 S-1 A2 Yes Yes 16 in. HBAR 1:12 Short Ribbed No A1 AR series models Colt model no. Name Stock Fire control Rear sight Forward assist Case deflector Barrel length Barrel profile Barrel twist Hand guards Bayonet Lug Muzzle device AR6320 AR-15 Lightweight 4th Generation S-1 A1 Yes Yes 16 in. A1 1:9 Short Ribbed Yes A2 AR6450 AR-15 9 mm Carbine 4th Generation S-1 A1 No Removable 16 in.

A1 1:10 Short Ribbed Yes A1 AR6520 AR-15A2 Government Carbine 4th Generation S-1 A2 Yes Yes 16 in. A1 1:7 Short Ribbed Yes A2 AR6520SP AR-15A2 Government Carbine 4th Generation S-1 A2 Yes Yes 10 in. A2 1:7 Short Ribbed Yes A2 AR6525 AR-15A2 Government Carbine 4th Generation S-1 A2 Yes Yes 16 in. A2 1:9 Short Ribbed Yes A2 AR6721 AR-15A3 Tactical Carbine 4th Generation S-1 Flattop Yes Yes 16 in.

HBAR 1:9 Short Ribbed Yes A2 AR6721SP AR-15A3 Tactical Carbine 4th Generation S-1 Flattop Yes Yes 10 in. HBAR 1:9 Short Ribbed Yes A2 AR6951 4th Generation S-1 Flattop Yes Yes 16.1 in. A2 1:10 Short Ribbed Yes A2 MT and CR series models Colt model no. Name Stock Fire control Rear sight Forward assist Case deflector Barrel length Barrel profile Barrel twist Hand guards Bayonet Lug Muzzle device CR6724 Colt Accurized Rifle A2 S-1 Flattop Yes Yes 24 in. Stainless HBAR 1:9 FF Tube No None CR6720 Colt Accurized Rifle A2 S-1 Flattop Yes Yes 20 in. Stainless HBAR 1:9 FF Tube No None MT6400 Match Target M4 4th Generation S-1 Flattop Yes Yes 16 in.

M4 1:7 M4 No None MT6400C Match Target M4 4th Generation S-1 Flattop Yes Yes 16 in. M4 1:7 M4 No Factory compensator MT6530 Match Target Lightweight A2 S-1 A2 Yes Yes 16 in. A1 1:7 Short Ribbed No None MT6551 Match Target Rifle A2 S-1 A2 Yes Yes 20 in. A2 1:7 Ribbed No None MT6601 Match Target HBAR A2 S-1 A2 Yes Yes 20 in. HBAR 1:7 Ribbed No None MT6601C Match Target HBAR A2 S-1 A2 Yes Yes 20 in. HBAR 1:7 Ribbed No Factory compensator MT6700 Match Target Competition HBAR A2 S-1 Flattop Yes Yes 20 in.

HBAR 1:9 Ribbed No None MT6700C Match Target Competition HBAR A2 S-1 Flattop Yes No 20 in. HBAR 1:9 Ribbed No Factory compensator MT6731 Match Target Competition HBAR II A2 S-1 Flattop Yes Yes 16 in. HBAR 1:9 Short Ribbed No None MT6830 AR-15A2 Government Carbine (Post-Ban LE Only) 3rd Generation S-1 A2 Yes Yes 16 in.

HBAR 1:12 Short Ribbed Yes A2 LE series models Colt model no. Name Stock Fire control Rear sight Forward assist Case deflector Barrel length Barrel profile Barrel twist Hand guards Bayonet Lug Muzzle device LE1020 Gas Piston Carbine 4th Generation S-1 Flattop Yes Yes 16 in. M4 1:7 Rail System Yes A2 LE1033 Gas Piston Commando 4th Generation S-1 Flattop Yes Yes 11.5 in. A2 1:7 Rail System Yes A2 LE6920 Law Enforcement Carbine (Also produced under license by ) 4th Generation S-1 Flattop Yes Yes 16 in.

M4 1:7 M4 Yes A2 LE6920HB Law Enforcement Carbine 4th Generation S-1 Flattop Yes Yes 16 in. M4 HBAR 1:7 M4 Yes A2 LE6921 M4LE Carbine 4th Generation S-1 Flattop Yes Yes 14.5 in. M4 1:7 M4 Yes A2 LE6921CQB M4LE Carbine 4th Generation S-1 Flattop Yes Yes 10.5 in. M4 HBAR 1:7 M4 Yes A2 LE6921HB M4LE Carbine 4th Generation S-1 Flattop Yes Yes 14.5 in.

M4 HBAR 1:7 M4 Yes A2 LE6921SP M4LE Carbine 4th Generation S-1 Flattop Yes Yes 10 in. M4 HBAR 1:7 M4 Yes A2 LE6933 M4LE Commando 4th Generation S-1 Flattop Yes Yes 11.5 in. A2 1:7 Short Ribbed Yes A2 LE6940 Monolithic Advanced Law Enforcement Carbine 4th Generation S-1 Flattop Yes Yes 16 in. M4 1:7 Monolithic Rail System Yes A2 LE6941 Law Enforcement Carbine (direct impingement version of LE1020) 4th Generation S-1 Flattop Yes Yes 16 in.

Colt Sp1 Value

M4 1:7 Rail System Yes A2 LT series models Colt model no. Name Stock Fire control Rear sight Forward assist Case deflector Barrel length Barrel profile Barrel twist Hand guards Bayonet Lug Muzzle device LT6720-R Talo Special Edition 4th Generation S-1 Flattop Yes Yes 16 in. Lightweight pencil barrel 1:7 Rail System No A2 Colt military models without model numbers In rare instances some Colt models have been produced without in house model numbers, or at least one which is readily apparent. Name Stock Fire control Rear sight Forward assist Case deflector Barrel length Barrel profile Barrel twist Hand guards Bayonet Lug Muzzle device A2 S-1-F or S-1-3 A2 Yes Yes 20 in. A2 1:7 Ribbed Yes A1 or A2 Retractable ACR S-1-3 Flattop Yes Yes 20 in.

A2 1:7 ACR Type No ACR compensator FPW Wire S-F None No No 15.6 in. HBAR 1:12 Short Round No A1 None S-F None No No 15.6 in. HBAR 1:12 Short Round No A1 Diemaco/Colt Canada models The Canadian company (formerly ) licensed production of a rifle (Colt Model 715) and carbine (Colt Model 725), but later went on to produce an entire line of AR-15/M16 pattern weapons developed independently.

In May 2005, Colt's Manufacturing Company acquired Diemaco, and the name was changed to Colt Canada. Colt model no. Diemaco model Stock Fire control Rear sight Forward assist Case deflector Barrel length Barrel profile Barrel twist Hand guards Bayonet Lug Muzzle device 715 A2 S-1-F A1 Yes Yes 20 in. A2 1:7 Ribbed Yes A2 N/A A2 S-1-F Yes Yes 20 in.

A2 1:7 Ribbed Yes A2 N/A Canadian 3rd Generation S-1-F Weaver Yes Yes 20 in. A2 1:7 Ribbed Yes A2 750 A2 S-F A2 Yes Yes 20 in. HBAR 1:7 Square LMG No A2 N/A A2 S-F Weaver Yes Yes 20 in. HBAR 1:7 Square LMG No A2 725 3rd Generation S-1-F A1 Yes Yes 14.5 in. A1 1:7 Short Ribbed Yes A2 N/A Canadian 3rd Generation S-1-F Weaver Yes Yes 14.5 in. A1 1:7 Short Ribbed Yes A2 N/A Canadian 3rd Generation S-1-F Weaver Yes Yes 14.5 in.

A2 1:7 Short Ribbed Yes A2 N/A Canadian 3rd Generation S-1-F Weaver Yes Yes 16 in. SFW 1:7 Short Ribbed Yes A2 N/A Canadian 3rd Generation S-1-F Weaver Yes Yes 10 in. A2 1:7 Short Ribbed Yes A2 N/A Canadian 3rd Generation S-1-F Weaver Yes Yes 5.7' in. A2 1:7 N/A No A2 Non-factory military models Name Base weapon Stock Fire control Rear sight Forward assist Case deflector Barrel length Barrel profile Barrel twist Hand guards Bayonet Lug Muzzle device GAU-5/A or GAU-5A/A 2nd or 3rd Generation S-1-F A1 Yes No 14.5 in. A1 or M4 1:7 Short Ribbed Yes A1 or A2 GAU-5/A or GAU-5A/A 2nd or 3rd Generation S-1-F A2 or Flattop Yes Yes 14.5 in. M4 1:7 M4 Yes A2 Mekut'zar Model 653 3rd Generation or Israeli S-1-F A1 Yes No 14.5 in.

M4 1:7 Short Ribbed Yes A2 Mekut'zrar Model 653 2nd Generation or Israeli S-1-F A1 Yes No Variable; 9' average A1 1:12 Short Ribbed No Various Glossary of terms Stock Fixed Stocks. A1: Fixed stock as used on M16 and M16A1. May or may not have a trapdoor to store a cleaning kit. A2: Improved stock used on M16A2.

Longer by 5/8'. Tubular: Fixed tubular buttstock, similar to the 2nd Generation retractable unit, using a receiver extension and triangular rear with buttplate Retractable Stocks. 1st Generation: 2-position sliding stock that resembled a shortened fixed buttstock.

Colt Sp1 Carbine Value

2nd Generation: 2-position aluminum retractable stock. 3rd Generation: 2-position fiberlite retractable stock. Introduced 1985.

Canadian 3rd Generation: 4-position fiberlite retractable stock fitted with rubber buttpad. 4th Generation: 4-position nylon retractable stock.