Volquartsen Competition Bolt Features The Volquartsen Competition Bolt for the Smith and Wesson M&P 15-22 is CNC-machined from 416 stainless steel and heat treated for durability then finished with a DLC coating that reduces friction and wear across thousands of cycles. This coating means the bolt continues to run reliably with only minimal lubrication cutting down on maintenance time between range sessions. Volquartsen s Exact Edge Extractor comes pre-installed on the bolt addressing one of the most common sources of failures to extract in rimfire AR-platform rifles. The bolt is compatible with both the M&P 15-22 rifle and the M&P 15-22 pistol giving owners of either variant the same reliability upgrade. Also included is Volquartsen s SureStrike Firing Pin engineered to work alongside the Exact Edge Extractor for consistent reliable ignition shot after shot. Installation requires the shooter s factory bolt carrier recoil spring recoil rod recoil lug and charging handle none of which are included with this bolt. For shooters who compete or simply want a rimfire AR that runs clean through high volumes of ammunition eliminating stove-pipes and failures to feed makes a real difference in range time. For M&P 15-22 owners looking to solve reliability issues once and for all the Volquartsen Competition Bolt is a proven upgrade. Volquartsen Competition Bolt for Smith and Wesson M&P 15-22 Specifications Brand: Volquartsen Model: Competition Bolt Compatible Hosts: Smith and Wesson M&P 15-22 Rifle and Pistol Type: Competition Bolt Material: 416 Stainless Steel Finish: DLC Color: Black Caliber: 22 LR Includes: SureStrike Firing Pin Exact Edge Extractor Handedness: Right Weight: 0.313 lbs Available At: GrabAGun