Complete stock adapter kit for the Browning Bar Match/FN FNAR which includes everything you need.
The kit includes the following parts:
AR stock adapter for Browning Bar Match/FN FNAR - Gen2
Buffertube Milspec
Castle Nut
Endplate
Castle Nut wrench
Magpul MOE AR15 pistol grip
Magpul CTR Mil-spec carbine stock