Trinity Force's AR Receiver Extension Kit includes a standard buffer spring, 3oz carbine buffer, castle nut and lower receiver end plate. It is parts are constructed from aircraft grade aluminum and a high strength steel with a black hard coat anodize finish. The 11" buffer tube also features rolled threading.
This assembly kit fits on all Mil-Spec AR 15 lower receivers.
|Series||Receiver Extension Kit|
Determined at checkout.