Used Empire Battle Tested BT-4 Combat with upgrades Mid-Cap Magazines Safety System: Gas Blowback Hopup:

Safety System: Gas Blowback Hopup: Yes

A translucent backshell allows the shooter to quickly view paint levels in a single glance

Sling mounts

Contoured rubber pull tab and Velcro closure keep glove in place and snug

One of the benefits of the new valve

Used Empire Battle Tested BT-4 Combat with upgrades Mid-Cap Magazines Safety System: Gas Blowback Hopup:This is a listing for a used BT 4 Combat. This marker shows signs of use, and it has been tested by our factory trained technician and is found to be in perfect working condition. See images below for more details. Some of the upgrades: Apex 2 barrel Barrel shroud M16 style sight rail handle Front Foregrip Stock Flashlight with pressure switch on off