Bushmaster XM15-E2S HBAR 5.56 NATO 20 Inch AR-15 Rifle, A2 Carry Handle, Windham ME, Post-Ban Configuration
This Bushmaster XM15-E2S HBAR stands out with its Windham, Maine B.F.I. rollmark, a 20 inch heavy-profile barrel, and a period-correct post-ban configuration featuring a crowned, unthreaded muzzle and no bayonet lug. The barrel is marked "B MP 5.56 NATO 1/9 H BAR," indicating proof and magnetic particle inspection with a 1:9 twist. Classic A2 sights and furniture are paired with a rifle-length gas system, and a clamp-on carry-handle rail adapter is installed.
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.
Specific Condition Notes: The firearm is in overall good shape. Scratches, discoloration, and finish loss are present. The bore is clean and shiny.
What’s Included
- 1x 30-round USGI-style aluminum STANAG magazine
- Clamp-on carry-handle rail adapter (installed)
The 20 inch HBAR barrel is crowned and unthreaded, consistent with its post-ban style configuration. It is marked "B MP 5.56 NATO 1/9 H BAR" to denote proof and MP inspection, chambering in 5.56mm NATO, and a 1:9 twist suited to a wide range of loads. A rifle-length gas system supports smooth operation.
Classic A2 sighting is present with a fixed A-frame front sight and an integral A2 rear sight in the fixed carry handle. The front sight base includes a sling swivel and carries a cast "R 20" marking. A handguard retaining ring secures the handguards.
The upper and lower receivers are aluminum alloy. Controls include a forward assist, brass deflector, ejection port cover, and a manual SAFE/FIRE selector. The stock is the A2 fixed type with a trapdoor buttplate and rear sling loop, matched to an A2 pistol grip and round ribbed, rifle-length two-piece polymer handguards.
This semi-automatic, direct-impingement AR-15 platform rifle is marked with the Windham, Maine B.F.I. rollmark and "B MP" proof/inspection stamp. Capacity is 30+1 with the included USGI-style magazine. A clamp-on carry-handle rail adapter is installed.