Complete, Mil-Spec; Ready To Drop In & Run Like Clockwork

Complete, .223/5.56mm AR-15 bolt and carrier assembly comes with all the parts, fully assembled, and ready to go. Drop it in your AR, check headspace, and you’re ready to shoot. Precision-machined in Les Baer’s state-of-the-art manufacturing facility from durable, high-grade 8620 nickel-chromium-molybdenum alloy steel billet. 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, have a uniform matte black Parkerized finish for extra strength and corrosion resistance. Interiors of the carrier and carrier key are hard-chromed for additional durability and to aid in clockwork reliability. Carrier and stripped bolt also available separately. Bolt – Stripped bolt allows you to build up a custom, high-performance bolt to suit your exact needs by installing the firing pin, extractor, ejector, gas rings, pins, and springs of your choice. Carrier – Comes with gas key installed and staked.