Specification information: Updated design of the standard ar-15 bolt features a fully supported breech face and a dual-spring extractor system for extra strength and reliability to handle the 6.8 remington spc ii or 224 valkyrie cartridge. Machined from an extremely hard steel alloy normally used in high-stress/heat applications like race car transmissions, then shot-peened and x-rayed for flaws before plating with a nickel-boron (nib) coating. Nib coating significantly reduces friction coefficient, so the bolt is less likely to be hung up by fouling, and wear-resistance is greatly enhanced. Super-slick surface makes cleanup easy because carbon and gunk have a hard time sticking to it. Mfg: lwrc international specs: ultra-hard steel alloy, nickel-boron plated, silver finish. Comes complete with ejector, extractor, and gas rings installed. Fits a standard ar-15 carrier. Reliable & durable rifle bolts by LWRC. Manufacturer MPN: 2000070A01.
 Indicative Price: USD 54.99
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