The BCM GFSK-MOD2-RMS-BLK Stock Kit Mod 2 Wide Body is compatible with Mil-Spec carbine receiver extensions and optimized for intermediate length receiver extensions including the MK2, AR10, and A5. The streamlined design facilitates shooting in the prone position while eliminating snag points—no sharp edges to catch on slings, antenna, or other PPE.
This kit includes: BCM Stock Mod 2 in Black, BCM MK2 Receiver Extension (7076T6 aluminum, approximately 3/4 longer than carbine length, 8 position, Mil-Spec diameter), Mil-Spec M16A4 Rifle Action Spring, BCM MK2 Mod 1 T0 Buffer (approximately 3.8oz), BCM EPM4 End Plate with QD swivel mount, and Locking Nut (Castle Nut) M4.






