M4 Buttstock Adapter
This adapter allows the use of AR style buttstocks. The special design puts the butt stock inline with the bore, directing recoil straight back instead of over the shooters shoulder causing muzzle climb in unsupported firing positions.
IMPORTANT NOTE: In order to use this M4 butt stock adapter on an open bolt machine gun, you ALSO NEED to purchase our OPEN BOLT INTERNAL RECOIL BUFFER. In the older and heavier MG butt stock designs, those stocks contain a heavy oil and spring buffer that fits into the center of the stock. This adds weight and also pushes the butt stock out of line with the bore causing the gun to more easily rise when firing.
The buttstock shown is optional.
We Also Recommend