DMND Cylinder For G3, M16-A1/VN, M16A2, AK

A diamond pattern wrapping around a cylinder design makes tappet go more smoothly.
Special cut in the front makes the tappet get back more when operation.
Increase the stroke to have a good performance.

– Knurled diamond pattern for heat dissipation
– Cut-out at bottom section for greater clearance tappet plate to improve loading reliability