Shop › LUTH AR 308 CARB BFR TUBE ASSY MIL LUTH AR 308 CARB BFR TUBE ASSY MIL $76.60 Luth-AR Mil-Spec Dia Carbine Buffer Tube Complete Assembly Fits AR-10 Rifles, with Buffer, Buffer Tube, & Spring, Black 308-M-BAP Quantity: Add To Cart Added! Luth-AR Mil-Spec Dia Carbine Buffer Tube Complete Assembly Fits AR-10 Rifles, with Buffer, Buffer Tube, & Spring, Black 308-M-BAP