Luth-AR's .223 Mil-Spec Carbine Buffer Tube Complete Assembly Kit for AR-15 rifles includes a Mil-Spec diameter carbine buffer tube, standard carbine recoil buffer, carbine recoil spring, receiver end plate and castle nut.

• For AR-15 Rifles
• Kit includes Mil-spec Carbine Tube .223 buffer spring" .223 buffer body" latch plate and lock ring"