The AR-STONER AR-15 Side Charging Upper Receiver Assembly Gen 2 is chambered in 12.7x42 and delivers precision accuracy at an affordable price. The machined billet aluminum upper receiver is combined with an extruded aluminum free float M-LOK handguard and both are hard coat anodized.
This complete upper features a carbine-length gas system, bolt carrier group, 16” heavy profile barrel with a matte finish and a lightweight 15” free float AR-Stoner M-LOK handguard and a flash hider.
Attach your favorite sling to the free float handguard with integrated QD mounts and use the precision M-LOK cutouts at the three, six, and nine o'clock positions for mounting MIL-STD 1913 Picatinny rails or other direct-attach M-LOK accessories.
- Gen 2 Bolt Handle
- Chambered in 12.7x42mm
- 16" Heavy Contour Barrel