FM Products Mike-9 RMB Heavy Buffer

FM Products Mike-9 RMB Heavy Buffer is a recoil-mitigating buffer system designed for pistol caliber carbines (PCCs). The RMB uses a tuned reciprocating mass, sliding buffer body, dampening spring, and a durable urethane impact modifier to provide a soft, controlled recoil impulse. It is designed for use with a short-stroke VFM-9 upper, and if building a PCC upper that is not short-stroke, an A5 buffer tube is recommended to ensure bolt lock back. Specifications: weight 11 oz. Package contents: FM Products Mike-9 RMB Heavy Buffer.