Battle Arms Development Advanced AR-15 H2 + H3 Buffer Kit - Carbine

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

Armaspec SMB Gen 3 Buffer-H3 Kit, Black - Maximum Recoil Reduction - ARM268-H3

Timber Creek Outdoors Buffer Tube Kit for AR-15, Red - ARBTKR

Timber Creek Outdoors Buffer Tube Kit for AR-15 - Lightweight and Durable in Blue Finish - ARBTKB

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

GUNTEC AR15 9 PISTOL BRACE BUILD KIT & BUFFER TUBE BLACK

Timber Creek Outdoors Buffer Tube Kit for AR-15, Robin's Egg Blue - ARBTKRE