The Volquartsen Performance Bundle for the M&P 15-22 is designed to eliminate common function-related issues and increase accuracy. This bundle includes a Lightweight Carbon Fiber barrel (choose rifle or pistol length), 20 Hole Compensator, and Competition Bolt. The THM tension barrel includes a special taper-honed match barrel and chamber. This is the ultimate lightweight barrel.The Volquartsen Competition Bolt is precision machined, DLC-coated, and includes a SureStrike Firing Pin and Exact Edge extractor. The Compensator is CNC-machined from 416 stainless steel. It will minimize recoil and disperse gases evenly for improved accuracy. This Performance Bundle will take your M&P 15-22 to the next level! IncludesWrench (included) required to remove and install barrelLightweight Carbon Fiber Barrel for Rifle or PistolCompetition Bolt for the M&P 15-2220 Hole Comp for M&P 15-22, Black