Luth-AR’s 308 Mil-Spec Carbine Buffer Tube Complete Assembly Kit for AR-10 rifles includes a Mil-Spec diameter carbine buffer tube” 308 carbine recoil buffer” carbine recoil spring” receiver end plate and castle nut.
Luth-AR Mil-Spec Dia Carbine Buffer Tube Complete Assembly Fits AR-10 Rifles, with Buffer, Buffer Tube, & Spring, Black 308-M-BAP
