The BT-4 Assault™ comes with the same Battle Tested technology as other BT markers. Loaded with features, the Assault is built for business and gets the job done. Fully upgradeable, the Assault easily accepts numerous BT upgrades.

Features
Slide-Away™ feedport for easy cleaning & maintenance
Adjustable vertical front grip
Selecta-Barrel™ adapter allows use of multiple barrel threads
Tactical collapsible CAR stock
M-4 style raised rear sight/carrying handle
M-4 style barrel system
Modular trigger system
Dual picatinny mounting rails meet military standard 1913
Tournament legal external velocity adjuster
Easily accepts expansion chambers, vertical & horizontal bottle adapters
Works with CO2 or compressed air