The Reliability of an AK in the Shell of an AR

The Adams Arms P1 complete upper is a piston driven powerhouse ready for whatever you throw at it. The carbine length short stroke piston makes this upper a soft shooting eat anything upper. The 11.5" barrel is the perfect length to still deliver the needed velocity to be a usable in defensive scenarios.

Item Specifications and Features:

• Adams Arms FGAA-01358
• Upper Receiver: A4 Flat-Top, Forged
• Barrel Length: 11.5?
• Barrel Contour: Government
• Barrel Material: 4150 Chrome Moly Vanadium Steel
• Muzzle Thread Pattern: 1/2?-28
• Chrome Lined: No
• Barrel Finish: QPQ Melonite / Black Nitride
• Twist Rate: 1 in 7?
• Chamber: 5.56x45mm NATO
• M4 Feed Ramps: Yes
• Bolt Carrier: Full-Auto Rated 1-Piece w/Integral Piston Strike Face
• Muzzle Device: A2 Flash Hider
• Gas System Length: Carbine, Short Stroke Piston Operated
• Gas Block Diameter: 0.750?
• Handguard: M4 Handguards
• Sights: None
• Weight: 3.7 lbs
• Lifetime Warranty

This upper receiver can be connected to any standard AR-15 pistol lower receiver. All NFA rules apply.