McMosa Includes:

Strike Trigger For Fast Action Firing

It has a quicker change spring system so that you can quickly and easily upgrade or downgrade your spring once you remove the gearbox from the receiver

G&P M4 magazines are the only magazines you can trust to keep the rounds flowing down range

Umarex 12g CO2 Adapter Set 1911 parts McMosa Includes:The Umarex CO2 Adapter allows airgun shooters to use two 12 gram CO2 cartridges in place of one 88 gram tank on most 88 gram CO2 powered airguns, like the Umarex AirJavelin and 850 AirMagnum. 12 gram CO2 cartridges are much easier to find in retail stores than the 88 gram tanks and they also offer shooters more flexibility, especially when only wanting to take a few shots. Prevents wasting unused portions of an 88 gram cartridge. This adapter will