DPM Heckler&Koch MR 308 HK 762/ HK 417/ G27 Recoil Reduction Buffer Assembly RBA/H&K MR 308

DPM Heckler&Koch MR 308 HK 762/ HK 417/ G27 Recoil Reduction Buffer Assembly RBA/H&K MR 308. Reduction of recoil is accomplished due to the patented multi-springs & counterweights mechanism. The system produces advanced recoil reduction by gradually slowing down the bolt carrier before stopping in the bottom the tube. Included are 2 extra buffer springs 2 counterweight springs and 1 extra heavier counterweight. The user can fine tune the rifle circle and the recoil and further to secure the corr