Upper P2 300BLK 8″ AARS



Availability: Backordered 6-8 Weeks



The Adams Arms P2 model is the tactical, battle-ready model in the P-Series lineup. The P2 model includes an ergonomic free float rail that covers the P Series Micro Block Adjustable piston system. This upper features an A2 flash hider and an ambidextrous charging handle. The P2 is your off-the-shelf, tactical model that is configurable for any type of shooter.

*We only guarantee the reliable cycling of Sub-Sonic ammunition with the use of a suppressor. As 300 Blackout is not a mil-spec cartridge, some tuning may be necessary depending on grain weight and suppressor used. Contact Support@adamsarms.net for any questions.



Upper Receiver: A4 Flat-Top, Forged

Barrel Length: 8″

Barrel Contour: Government

Barrel Material: 4150 Chrome Moly Vanadium Steel

Muzzle Thread Pattern: 5/8″ x 24

Chrome Lined: No

Barrel Finish: QPQ Melonite / Black Nitride

Twist Rate: 1 in 7″

Chamber: 300BLK

M4 Feed Ramps: Yes

Bolt Carrier: Full-Auto Rated 1-Piece w/Integral Piston Strike Face

Muzzle Device: A2 Flash Hider

Gas System Length: Pistol, Short Stroke Piston Operated

Gas Block Diameter: 0.750″

Handguard: Adams Arms AARS M-LOK Rail System

Sights: None

Weight: 3.2 lbs

UPC: 812151024749

Lifetime Warranty: Yes

Additional Information

Weight7 lbs
Dimensions40 × 15 × 5 in
Barrel Length

7" – 10"



P Series


Product Type


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