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Mil-Spec, made in the USA.

Kit includes:

• M4 telescoping buttstock w/Sling Loop

• Mil-spec receiver extension (6 position) 7075 Aluminum

• Castle nut

• USGI End plate

• Buffer, Recoil (Carbine)

• Recoil spring, stainless

• Buffer Detent

• Buffer Detent spring