Assembled in the US – Button & Paddle Magazine Release – Adjustable Front with Rotary Aperture Rear Sight – Birdcage Style Flash Hider – Fixed Stock – Roller Delayed Blowback – CALIBER 7.62 X 51 MM – RECIEVER MATERIAL Stamped Steel – GRIP MATERIAL GI Polymer Surplus – BOLT MATERIAL Steel – RECIEVER FINISH Original Distressed – BARREL MATERIAL CHROME-MOLY 4150 – MAGAZINE CAPACITY 20 rounds – SIGHT CONFIGURATION Adjustable Front with Rotary Aperture Rear Sight – MUZZLE DEVICE Birdcage Style Flash Hider – OVERALL LENGTH 40.5 – OVERALL HEIGHT 8.7 – OVERALL WIDTH 1.8 – BARREL LENGTH 18 – BARREL TWIST 1:10 RH – WEIGHT 9.5 lbs