The AR-STONER AR-15 Pistol A3 chambered in a .300 Blackout provides style, function, affordability to your AR-15 Pistol. The A3 upper attaches to virtually any standard AR-15 lower receiver. Machined with .300 Blackout feed ramps, this upper features a 1:8 twist rate, pistol length gas system, and 10.5" heavy barrel made of 4150 chrome moly vandium steel with a parkerized finish.
- 10 5/16" M-Lok rail
- M4 flat top forged upper receiver
- BCA Bolt Carrier Group
- Flash Hider
- Charging Handle