Bushmaster XM15-E2S 5.56 NATO AR-15, 16 inch, A3 Flat-Top, Carbine Gas, A2 Stock, Ilion NY (2011–2014)
Freedom Group-era XM15-E2S with Ilion, NY rollmark and BK-prefix serial, produced circa 2011–2014. This carbine features a 16 inch steel barrel with threaded muzzle and A2 birdcage, a flat-top A3 upper with T-marked STANAG 1913 receiver rail, and a pinned A-frame front sight base with bayonet lug. It includes a low-profile flip-up rear sight and an aftermarket ERGO rubberized pistol grip.
Condition
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
This firearm is in functional shape. External wear includes scratches and blemishes. Rust and pitting are present. The buffer is not captured.
What’s Included
- 1x 30-round Magpul PMAG Gen M3 for 5.56×45 (polymer)
- Low-profile flip-up rear sight (installed)
- ERGO rubberized pistol grip (installed)
The XM15-E2S is built on forged aluminum receivers with a matte black anodized finish. The flat-top A3 upper includes a forward assist, brass deflector, and ejection-port cover, with a T-marked STANAG 1913 rail for mounting the included rear sight or other compatible accessories.
The 16 inch steel barrel uses a carbine-length gas system and a non-M4 profile. It is threaded and fitted with an A2 birdcage flash suppressor. The pinned A-frame front sight base integrates a bayonet lug and a front sling swivel.
The rifle uses an A2-pattern fixed stock made of black polymer, complete with a trapdoor buttplate and rear sling loop. Length of pull is 13.0 inches. Carbine-length, two-piece ribbed polymer handguards round out the classic configuration.
This semi-automatic, direct-impingement AR-15 accepts STANAG-pattern detachable magazines. It is chambered in 5.56mm NATO with a 30+1 capacity and includes a Magpul PMAG Gen M3. A manual safety selector is standard.
Markings and production attributes identify this example as a Freedom Group/Remington-era Bushmaster manufactured in Ilion, New York between 2011 and 2014, with a BK-prefix serial aligning to that timeframe.