Adams Arms 12.5" P series Evo Upper 300BLK AR-15 AR15 Pistol Piston
Complete Specifications:
Upper Receiver: A4 Flat-Top, Forged
Barrel Length: 12.5"
Barrel Contour: Medium
Barrel Material: 4150 Chrome Moly Vanadium Steel
Muzzle Thread Pattern: 5/8"-24
Chrome Lined: No
Barrel Finish: QPQ Melonite / Black Nitride
Twist Rate: 1 in 8"
Chamber: 300BLK
M4 Feed Ramps: Yes
Bolt Carrier: 1-Piece w/Integral Piston Strike Face Low Mass - BCG Included
Milspec Charging Handle Included
Muzzle Device: VDI .30 Cal Jet Comp
Gas System Length: Pistol, Short Stroke Piston Operated
Gas Block Diameter: 0.750"
Handguard: 12" Evolution Rail
Sights: None
Weight: 4.25 lbs