Specification :

Upgrade from version 3 to LE package includes:
1. LE core with all the upgrades. This is a whole new LE core, you don' t have to replace any internal parts, just plug and play.
2. LE copper lined barrel to increase velocity. This is a whole barrel with the barrel mount, sleeves, front sight and even the L-Sling mount , again just plug and play.
3. Rubber grommet for sealing the chamber and prevent the ball from rolling out. This is installed on the barrel already and is ready to go.This upgrade kit is designed for quick and easy installation with no mess and no stress! ! !
4. Charging handle