Product Overview
The KWA LM4D Bolt Assembly is a drop-in bolt carrier group that fits the KWA LM4D and LM4D MLok PTR line. This assembly comes with the nylon polymer bolt and metal Bolt Carrier Key pre-installed, and also includes the metal piston stop insert. This is the stock BCG that comes in all LM4D series models and is rated at around 380-400 FPS*
Weight .5 lbs
Dimensions 7 × 1 × 1 in
