Bushmaster XM15-E2S Optics Ready Carbine 5.56 NATO | Windham, ME Pre-Freedom Group Production
This Windham-marked Bushmaster XM15-E2S Optics Ready Carbine offers collectors and shooters a clean, pre-Freedom Group example built on forged 7075-T6 receivers. The flat-top A3 upper, chrome-lined 16-inch CMV barrel, and low-profile railed gas block make it ready for optics and accessories, while the six-position Tapco stock and Hogue-pattern grip add user-friendly ergonomics.
Condition
Overall Condition: Very good – shows only light, superficial signs of prior handling or use.
Bore Condition: Excellent – clean, mirror finish, no signs of wear.
Rifling Condition: Excellent – sharp lands and grooves.
Specific Condition Notes: Minor superficial scratches and small blemishes are present on the receivers and furniture, but none affect function or finish integrity.
What’s Included
- Bushmaster XM15-E2S Optics Ready Carbine (as described)
- One 30-round USGI-pattern aluminum magazine with orange anti-tilt follower
Made in Windham, Maine before Bushmaster’s relocation, this rifle falls into the desirable pre-Freedom Group era, identified by its L0 serial prefix and clean roll-mark. Enthusiasts often seek these rifles for their factory quality control and forged receiver construction.
The 16-inch chrome-lined chrome-moly-vanadium barrel uses a 1:9 right-hand twist, giving reliable stabilization across a wide range of 5.56 NATO and .223 Rem bullet weights. A carbine-length gas system and A2 flash suppressor complete the classic M4-profile setup, while the 1/2-28 muzzle threads accept common muzzle devices.
An A3 flat-top upper with a full MIL-STD-1913 rail and a low-profile railed gas block make the carbine optics-ready out of the box. The two-piece ribbed polymer handguard keeps weight down while providing heat protection during rapid strings.
Furniture upgrades include a Tapco six-position collapsible stock with an integral QD sling eyelet and a Hogue-pattern rubber over-molded grip that enhances control. Unloaded weight is approximately 6.5–7 lb, and overall length runs about 32.5 in collapsed to 35.75 in extended.
Standard AR-15 controls, a STANAG magazine interface, and forged 7075-T6 aluminum receivers ensure parts compatibility and easy maintenance, making this XM15-E2S a solid platform for range work or collection.