Bushmaster XM15-E2S A3 HBAR 5.56 NATO, 16-Inch MP-Inspected Heavy Barrel, Windham B.F.I. Rollmark
This Bushmaster XM15-E2S A3 HBAR is a Windham, Maine B.F.I.-marked AR-15 pattern rifle from the 1994–2004 era. It features a 16-inch magnetic particle inspected heavy barrel with 1:9 twist, a permanently pinned AWB-era muzzle brake, and an A3 flat-top upper with a detachable carry-handle A2 rear sight. The rifle is in very good overall condition with an excellent, mirror-bright bore and crisp rifling.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: The exterior shows minor, superficial scratches and blemishes. The bore is clean and shiny.
What’s Included
- Manual
- Black web sling (installed)
- Two 30-round magazines
- One 20-round magazine
The A3 configuration pairs a flat-top upper with a detachable carry-handle A2 rear sight featuring the 6/3 elevation drum, matched to an A2 front sight post. The upper includes the forward assist, case deflector, and ejection-port cover. This setup reflects the period-correct features associated with Bushmaster’s XM15-E2S line from this timeframe.
The 16-inch HBAR is stamped "B MP 5.56 NATO 1/9 H BAR," indicating a magnetic particle inspected heavy-profile barrel chambered for 5.56 NATO with a 1:9 twist. A permanently pinned AWB-era muzzle brake caps the barrel, consistent with rifles produced during 1994–2004. The carbine-length gas system and ribbed polymer handguards with aluminum heat shields complete a durable, heat-resistant front end.
The rifle uses a gas-operated, direct-impingement action with a manual safety. Receivers are aluminum with a matte black anodized finish. Furniture includes a fixed black polymer stock with a rear sling loop and an A2 pistol grip. The A2 front sight base is configured without a bayonet lug and uses a riveted sling swivel, aligning with the production era details.
Markings and features point to Windham, Maine B.F.I. production. Capacity is 30+1, and the length of pull measures 13.5 inches. Iron sights are standard, with the detachable carry handle offering robust A2 adjustments and the A2 front post providing a familiar sight picture.




