Patriot Ordnance Factory P-15 Base Features The Patriot Ordnance Factory P-15 Base runs on a gas operating system through a 16.5 inch E2 match-grade threaded barrel made of chrome moly vanadium steel delivering a dependable blend of accuracy and durability. The barrel s 1 in 8 inch twist stabilizes a wide range of 5.56 NATO bullet weights giving shooters flexibility in ammunition selection. A Picatinny rail aluminum receiver provides a stable mounting surface for optics while an A2 flash hider at the muzzle reduces visible signature when firing. The threaded barrel and 1/2x28 thread pattern also allow for a muzzle device upgrade down the road if desired. An M-LOK handguard keeps the forend slim and accessory ready giving shooters room to mount lights grips or bipods exactly where needed. The rifle s Mil-Spec anti-tilt 6 position buffer tube pairs with a Mission First Tactical Minimalist Retractable Stock which is compliant for California and other restrictive jurisdictions while still offering a secure adjustable fit. An A2 style grip rounds out the furniture package in a configuration built for broad legal compliance. The rifle ships with a 10-round MFT magazine already installed along with a Juggernaut Tactical Hellfighter kit and at 6.3 pounds the Patriot Ordnance Factory P-15 Base is a complete ready to run rifle available for sale at GrabAGun. Patriot Ordnance Factory P-15 Base Specifications Manufacturer: Patriot Ordnance Factory Model: P-15 Base Caliber: 5.56 NATO Capacity: 10+1 Action: Semi-Auto Operating System: Gas Barrel Length: 16.50 Barrel Description: Match Grade Threaded Barrel Material: Chrome Moly Vanadium Barrel Finish: Black Anodized Twist Rate: 1:8 Muzzle Device: A2 Flash Hider Thread Pattern: 1/2x28 Receiver Material: Aluminum Receiver Description: Picatinny Rail Receiver Finish: Black Anodized Handguard: M-LOK Stock: MFT Tactical Grip: A2 Trigger: Mil-Spec Overall Length: 34 Weight: 6.30 lbs Condition: CA Compliant Available At: GrabAGun