Luth-AR’s 9mm Mil-Spec Carbine Buffer Tube Complete Assembly Kit for AR-15 rifles includes a Mil-Spec diameter carbine buffer tube” 9mm carbine recoil buffer” carbine recoil spring” receiver end plate and castle nut.
Luth-AR 9MM Carbine Buffer Assembly, Mil-Spec Dia, Black 9MM-M-BAP
