BT- 4 COMBAT MARKER

FEATURES:
Lightweight balanced construction
Adjustable vertical front grip
Stainless steel bottomline
Impact-resistant, baked-on coating
Modular trigger system
Dual picatinny mounting rails meet military standard 1913
Tournament-legal external velocity adjuster
Removable grip frame for quick & easy upgrades
Easily accepts vertical & horizontal bottle adapters
Works with CO2 or compressed air