Black Rifle Arms AR-15 7.62x39 Low Profile Mid Length Piston Upper featuring Rainier Arms 12" Force Keymod Free Float Rail. Piston Upper fits any Mil-Spec Lower.
Upper builds are test fired with Wolf Ammo.
One Piece Piston Carrier: NiB EXO Coating
Enhanced Firing Pin
Premium Barrel Specs:
- Manufacturer: BLACK RIFLE ARMS
- Chamber: 7.62x39
- Material: 4150
- Barrel Length: 16"
- Twist: 1/9.5
- Thread: 5/8x24"
- Melonite: Inside and Out
- Contour: Medium Tactical Profile
- M4 Feed Ramps: Enhanced M4 Barrel Extension Specifically Designed for 30 Caliber Size Bullets
*No FFL required for upper shipment
Hollow Point Ammunition May Cause Feeding Issues
Package Requires a Signature Upon Delivery