Colt AR-15A2 Sporter Match HBAR R6601 5.56 NATO Pre-Ban (1991) 20" Heavy Barrel, 1:7 Twist, A2 Sights
This Colt AR-15A2 Sporter Match HBAR (R6601) is a 1991 pre-ban rifle that retains its bayonet lug and A2 birdcage flash suppressor. It features a 20" heavy-profile HBAR barrel with a 1:7 twist and "C MP 5.56 NATO 1/7 HBAR" markings, an A2 fixed carry handle upper, and classic A2 furniture. The bore is excellent, and the rifle includes three 30-round USGI-pattern aluminum magazines.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
The exterior shows moderate, honest handling wear consistent with normal use. The finish remains intact with some light surface marks and minor cosmetic blemishes, with no corrosion or structural damage. All markings are clear and legible. The action cycles properly, and all controls function as intended.
What’s Included
- Colt AR-15A2 Sporter Match HBAR rifle (R6601)
- Three 30-round USGI-pattern aluminum STANAG magazines
Manufactured in 1991, this pre-ban Sporter Match HBAR retains its bayonet lug and A2 flash suppressor, features that define many early-1990s Colt AR-15 configurations. It is a full-size AR-15 platform rifle with the R6601 designation and period-correct large-pin slotted front pivot screw.
The 20" steel HBAR barrel is threaded and fitted with an A2 birdcage. It has a 1:7 twist and is marked "C MP 5.56 NATO 1/7 HBAR," indicating Colt proof and magnetic-particle inspection. The chambering is 5.56mm NATO, and the heavy-profile barrel provides the classic HBAR configuration.
The upper is an A2 fixed carry handle type with a case deflector, forward assist, and dust cover. Sights are the A2 iron system, with a front post in a triangular front sight base and an A2 rear sight featuring the 8/3 elevation drum. The triangular front sight base includes a bayonet lug and a riveted sling swivel.
Furniture is the A2 pattern, including rifle-length round ribbed two-piece polymer handguards, a fixed stock with a trap-door buttplate and sling swivel, and an A2 pistol grip with finger swell. The receiver is a forged aluminum alloy with a hard-anodized finish. Operation is gas-operated, direct impingement with a rotating bolt, and controls include a manual safety selector. Length of pull is 14.0 inches.
The lower receiver is marked "SPORTER MATCH HBAR" and "CAL .223," while the barrel is marked "5.56 NATO 1/7 HBAR." Included are three 30-round magazines in the USGI-pattern aluminum STANAG style, and the rifle has a 30+1 capacity.