The P-15 BASE Rifle features our E2 16.5 match-grade 5.56×45 NATO barrel and our Patented Roller Cam Pin. The Mil-spec Anti-tilt 6 Position Buffer Tube comes standard with a MFT Adjustable Stock. The receiver set has been Hard Anodized black in color and this firearm features a 15 M-LOK Handguard. – Standard Features – Nitride Treated 4150 Chrome Vanadium Barrel – Black Anodized Finish – Standard Low-Profile Gas Block – Mil-Spec Charging Handle – Mil-Spec Trigger – SPECS – OAL (Collapsed) 34 in – Weight 6 lbs – Rifling 1:8 Twist 5R (5.56) – Barrel 16.5 in – Trigger Mil-Spec – Furniture MFT Stock A2 Grip – Receiver Finish Black Anodized – Handguard 15 MLOK – Muzzle A2 Flash Hider