Samurai Bolt Carrier Group:

Samurai Firearms Carrier Group Machined in-house! Complete, .223/5.56mm AR-15 bolt and carrier assembly comes with all the parts, fully assembled, and ready to go. Precision-machined carrier and bolt. Mil-spec dimensions ensure proper fit and function in a wide variety of OEM and aftermarket upper receivers. All components, including bolt and gas key are finished in Black Nitride QPQ for extra strength and corrosion resistance. Interior and wear surface areas of the carrier are honed and polished and for additional durability and to aid in clockwork reliability.

Rear Profile is the same as Full Auto M16 Carriers.

Warranty: Lifetime Warranty Under normal Civilian Use. Professional LE and Military Use 10 Years or 10,000 Rounds Whichever comes first.

Feel free to ask all the question you have. We take the time to answer them all!