PTS GBB Enhanced Polymer Grip (EPG) (Black / Tan) Bio and Non-Bio BBs Included: one piece dual railed

Included: one piece dual railed cantilever mount

Enlarged sector gear release tooth provides enhanced strength to cope with the accumulated spring load at the end of piston cycles

then this is the way to go

and Charging Handle

plastic button:Nylon

PTS GBB Enhanced Polymer Grip (EPG) (Black / Tan) Bio and Non-Bio BBs Included: one piece dual railedThe PTS Enhanced Polymer Grip (EPG) is a simple yet highly functional polymer pistol grip for the M4 M16 platform. It features an ergonomically designed shape and is a fully ambidextrous design at a conventional grip angle. The beavertail extension naturally encourages a high hand hold under the receiver for maximum recoil control while maintaining comfort. The EPG's distinctive texturing is optimized for strong and suitable grip under even adverse