Daniel Defense Mil-Spec Collapsible Buttstock, Fits AR Rifles, Black Finish 21-091-04179-006
ACE ACE Arule Stock, Entry Length, Buffer Tube, Lightweight, Black A145B
ACE ACE ARFX Stock, Rifle Lenght, Buffer Tube, 3 Sling Position, Black A101B
CMMG Rifle Length Receiver Extension/Stock Kit, For AR Rifles, Black 55CA646
CMMG RipStock, Compact Stock Assembly, 5 Position, Black Finish 45CA917