Aero Precision X15 Gen 2 5.56 NATO AR-15 – BCM Upper & BCG, Daniel Defense 16 in S2W Barrel, BCM Raider-M13, ALG ACT Trigger, B5 Stock, MBUS 3 Sights
This custom-configured AR-15 pairs an Aero Precision X15 Gen 2 lower with a BCM forged upper and BCM M16-profile BCG, anchored by a Daniel Defense 16 inch S2W cold hammer forged, chrome-lined barrel. A BCM Raider-M13 free-float M-LOK handguard, ALG Defense ACT single-stage trigger, B5 Systems Bravo adjustable stock, and Magpul MBUS 3 flip-up sights complete a well-matched build focused on durability, reliability, and clean execution.
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: This firearm is in very good shape, with minor superficial scratches and typical handling wear.
What's Included
- Magpul MBUS 3 flip-up sights (front and rear), installed
- Magpul M-LOK QD sling mount installed on handguard
- Magpul MOE K2+ pistol grip, installed
- B5 Systems Bravo adjustable stock, installed
- 6x 30-round Magpul PMAG Gen M2 MOE polymer magazines
- 1x 10-round GI-pattern steel AR-15 magazine
The foundation is an Aero Precision X15 Gen 2 lower marked "MODEL X15 / CAL MULTI" and "AERO PRECISION LAKEWOOD, WA," paired to a BCM forged upper receiver featuring a forward assist, shell deflector, and ejection-port cover. BCM branding is visible on the dust cover interior and the top rail. The action is semi-automatic, direct impingement, with a stated capacity of 30+1.
Barrel components are premium: a Daniel Defense 16 inch S2W profile made from 4150 CMV steel, cold hammer forged and chrome-lined, with a 1:7 twist and threaded muzzle capped by an A2-style flash hider. A BCM Raider-M13 13 inch free-float M-LOK aluminum handguard provides a continuous 1913 top rail and M-LOK slots at the 3, 6, and 9 o'clock positions, with a Magpul M-LOK QD sling socket installed.
Furniture and controls are purposeful and ergonomic. The B5 Systems Bravo adjustable stock includes a QD sling socket and is complemented by the appropriate buffer tube, buffer, and spring. The Magpul MOE K2+ pistol grip offers a secure hold. Included sights are Magpul MBUS 3 flip-ups, front and rear. The stated length of pull range is 10.75–13 inches.
The fire control group is the ALG Defense ACT single-stage trigger, featuring enhanced mil-spec geometry with NiB/Ni-Teflon coated components for a smooth, consistent pull. Receivers are 7075-T6 forged aluminum, and the platform is AR-15. Overall configuration emphasizes reliable components from Aero Precision, BCM, Daniel Defense, ALG Defense, Magpul, and B5 Systems, all U.S.-made.