The IMI Defense over-molded enhanced M4 grip is an optimized, rubberized pistol grip offering a narrow profile with added support on the backstrap, textured grip areas and receiver cover beavertail.

IMI Defense M4 Overmolded Pistol Grip  for M4 GBB
Made of high-quality fiber-reinforced polymer compound core over-molded with an anti-slip added friction rubber exterior.
Very slim design.
Highly durable.
Perfect for tactical rifles.
Fits M16/M4/AR15 style rifles