Aero Precision X15 Gen 2 AR-15 5.56 NATO, 20 in Rifle-Length Build with Free-Float M-LOK, Magpul Stock, Geissele Trigger
This parts-built AR-15 centers on an Aero Precision Model X15 Gen 2 lower and a BRN-15 upper, paired with a PSA 20-inch rifle-length 1:7 nitride setup featuring a 15-inch lightweight M-LOK handguard and an included BCG and charging handle. It adds a Geissele trigger for a refined fire control feel. The rifle is a full-size, direct-impingement 5.56 NATO build with a threaded muzzle and A2 flash hider, presented in excellent condition.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Specific Condition Details: There are very minimal signs of wear or use.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
What’s Included
- 1x 30-round polymer AR-15 STANAG-pattern detachable box magazine
Built on a forged 7075-T6 aluminum Aero Precision X15 Gen 2 lower, this rifle carries CAL MULTI and Aero Precision Tacoma, WA markings. The Gen 2 lower adds practical features such as a receiver-tension screw and a threaded rear takedown detent hole, alongside standard AR-15 controls including a safety selector and a standard magazine release. The black anodized finish provides a uniform appearance that matches the upper and handguard.
The upper uses a BRN-15 receiver and a PSA 20-inch rifle-length 1:7 nitride setup with a 15-inch lightweight free-float M-LOK handguard. The handguard integrates a continuous top Picatinny rail for mounting and aligns cleanly with the upper. The barrel is threaded and capped with an A2 flash hider. The PSA assembly includes the bolt carrier group and charging handle, as noted.
Furniture and controls are straightforward and functional: a Magpul adjustable carbine stock and an A2-style pistol grip provide a familiar interface. The listed length of pull is 12.0. A Geissele trigger is installed, offering a notable upgrade in the fire control group. The STANAG-pattern magazine well supports a 30+1 capacity with the included 30-round magazine.
This is a direct-impingement AR-15 with a rifle-length gas system and a 1:7 twist, assembled in a full-size configuration. The free-float handguard and continuous top rail support accessory placement, while the overall black anodized finish ties the build together. Country of origin is the United States.