CMC TRIGGERS AR15 8-Position Extended Buffer Tube Assembly Kit (83626)

CMC TRIGGERS AR15 6-Position Carbine Buffer Tube Assembly Kit (81626)

LBE Unlimited AR15 Milspec Buffer Tube Kit, Buffer Tube, Recoil Spring, Castle Nut, Receiver End Plate, Recoil Buffer, Red MILBUFKT-RED

LBE Unlimited AR15 Pistol Buffer Tube Kit, Buffer Tube, Recoil Spring, Castle Nut, Receiver End Plate, Recoil Buffer, Black PBUFKT-BLK

Battle Arms Development, Inc. 6 Position Buffer Tube, Mil-Spec Tube, Fits AR Rifles, Black AR15RE-MIL-6C

Luth-AR Mil-Spec Dia Carbine Buffer Tube Complete Assembly Fits AR-15 Rifles, with Buffer, Buffer Tube, & Spring, Black 223-M-BAP

Timber Creek AR Buffer Tube, Black - AR BT BL

Timber Creek Outdoors Buffer Tube Kit for AR-15, Red - ARBTKR