This low mass BCG provides smoother operation and less recoil resulting in faster target reacquisition for quicker follow-up rounds. This is critical in competition shooting and actual tactical situations.This FZ Lightweight BCG runs as great as it looks! Like all FailZero products it is easier to clean and maintain, and guaranteed for life.Features:21% weight reduction from standard Mil-Spec carrierFZ logo engraved into the carrierNew high polish finish on all componentsBenefits:Smoother operation! Less mass helps minimize the overall movement and reduces felt recoilLightweight is great for competition shooters as well as hunters looking for lighter gearAll components are EXO Nickel Boron coated which adds to the smooth operation, extended wear and easier cleaningLighter weight means faster follow up shots and better control of groupingsSpecifications:Carrier weighs only 6.4 oz and complete BCG is only 9.2 ozCompatible in all Mil-spec AR PlatformsAll components are EXO Nickel Boron with a high polish finishCompatible with 5.56, .223, and 300 BlackoutThis Bolt Carrier Group (BCG) comes fully assembled and ready to drop into most mil spec M16, M4 or AR15 upper receivers. All critical parts are coated with EXO Nickel Boron technology that provides permanent dry lubricity, extreme durability and increases both wear and corrosion resistance. Our patented Nickel Boron coating will reduce friction and improve the overall performance of your rifle.Nickel Boron treated parts include:Bolt & Extractor (5.56/.223 compatible)Lightweight Bolt CarrierExtractorCam PinCarrier KeyFiring Pin