Product Description

Drop-in captured-spring recoil system helps your AR function more smoothly and quieter without any permanent modifications. The carefully balanced custom-ground buffer spring combined with the JP LMOS buffer greatly reduces friction and vibration - say goodbye to the annoying "spoon over a cheese grater" noise of conventional springs and buffers. Fits buffer tubes for both M4-style collapsible stocks and also using the included spacer the longer tubes for fixed rifle stocks. The Heavy Spring System Version have Tungsten Weights and are recommended for Short-Barreled Rifles Suppressed Weapons Rifles with an H2/H3 Buffer Select-Fire Rifles and Piston-Operated Rifles Mfg: J P Enterprises