Vortex StrikeFire Optic and Engraved 5.56 Full-Auto Bolt Carrier Group

Vortex StrikFire Description When the situation demands fast shooting, a big scope with a narrow field of view just won't cut it—choose the StrikeFire red dot and shoot with both eyes open. With unlimited field of view and eye relief, nothing gets you on target faster than this tough, compact red dot scope.Optic has option for both RED/Green Dots.•High recoil caliber rating—tested with .375 H&H Magnum for 1000 rounds.•Included extra-high 30mm ring puts scope's bore center 37 mm (1.46 inches) above the base height. Commonly used for mounting with a Flat Top AR15, providing absolute co-witness with iron sights. Bolt Carrier Description Made in USA. Bolt is made of Mil-spec Carpenter 158 steel, Shot peened, High pressure tested and Mag Particle Inspected. Gas key is machined out of bar stock, chrome lined phosphate coated, and secured with grade 8 fasteners and staked per mil-spec. Bolt carrier is phosphated outside and chrome lined inside. Laser engraved with the PSA logo.Extractor SpringBlack Extractor InsertMil-Spec O-Ring