Luth-AR Buffer Tube Assembly 308-CS-10B, Fits AR-10 Rifles 308-CS-10B

Luth-AR Rifle Buffer Spring 308-BS-10B, .308/7.62NATO, Fits A2 Rifle Length Receiver Extension 308-BS-10B

LUTH-AR 308-CS-10A 308 CARBINE BUFFER SPRING

Luth-AR Fixed Rifle Length Buffer Tube Complete Assembly Fits AR-10 Rifles, with Buffer, Buffer Tube, & Spring, Black BAP-308

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Luth-AR Mil-Spec Dia Carbine Buffer Tube Complete Assembly Fits AR-10 Rifles, with Buffer, Buffer Tube, & Spring, Black 308-M-BAP