KAK INDUSTRY K-SPEC Enh AR-15 Buffr/Spring Kit Milspec Blue/ODG

Armaspec SRS Gen 4 Buffer-9 Kit, Black - Advanced Buffer Technology - ARM263-9

Armaspec SRS Gen 4 Buffer-H Kit, Black - Heavy-Duty Buffer for Improved Recoil Control - ARM263-H

Armaspec SRS Gen 4 Buffer-H3 Kit, Black - Superior Buffer Technology for Maximum Recoil Reduction - ARM263-H3

Armaspec SRS Gen 4 Buffer-H2 Kit, Black - Advanced Recoil Management with Heavy-Duty Buffer - ARM263-H2

Armaspec SMB Gen 3 Buffer-H Kit, Black - Heavy-Duty Buffer Kit for Enhanced Recoil Management - ARM268-H

Armaspec SMB Gen 3 Buffer-H2 Kit, Black - Superior Recoil Control with Advanced Buffer Technology - ARM268-H2

ANGSTADT ARMS Hydraulic Buffer Kit Heavy Damping Black