NBS Mil-Spec AR-15 Receiver Extension Buffer Tube End Plate

BCM GUNFIGHTER AR-15, LR-308 End Plate with QD Sling Swivel Mount Steel Matte

Timber Creek AR Buffer Tube, Black - AR BT BL

Tacfire Standard Mil-Spec End Plate for AR-15, Black - MAR038

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

Forward Controls Design REF AR15/M16 Carbine Receiver Extension - REF

Timber Creek Outdoors Buffer Tube Kit for AR-15, Robin's Egg Blue - ARBTKRE

TacFire 6-Postion Mil-Spec Buffer Tube Kit w/Dual Loop End Plate, Black