KAK Industry K-SPEC H3 Heavy Buffer and Spring Kit AR-15 5.5oz OD Green

KAK Industry K-Spec Enhanced A5H1 Buffer and Spring Kit, OD Green

Sons Of Liberty Gun Works Buffer Retainer Spring for AR-15 Stainless

KAK Industry K-Spec Enhanced H2 Buffer and Spring Kit, OD Green

Tactical Springs LLC Reduced Power Carbine Buffer Spring

Tactical Springs LLC Intermediate Power Hot White Carbine Buffer Spring

VLTOR SP-1 Buffer Kit SP-1, Includes 3oz Carbine Buffer, Carbine Spring, Fits AR-15, Matte Finish, Blacks AR15 SP-1

Milspec/GI AR-15 Carbine Buffer Spring