BT-4 Assault Features:

• Tournament legal external velocity adjuster
• Removable grip frame for quick and easy upgrades
• Easily accepts expansion chambers, vertical and horizontal bottle adapters
• Works with CO2 or compressed air
• M-4 style raised rearsight/carrying handle
• Tactical collapsible car stock
• M-4 style barrel system
• Stainless steel bottomline
• Impact resistant baked on coating
• Dual Picatinny mounting rails meet Military Standard 1913
• Modular trigger system
• 1 year full parts and labor warranty through the manufacturer
• Slide-Away Feedport for easy cleaning and maintenance - offset for aim and accuracy  
• Lightweight balanced construction
• Adjustable vertical front grip
• Accepts A5 threaded barrels 
• Selecta-barrel adapter allows use of multiple barrel threads

Kit Includes:

• BT-4 Assault Marker - Black
• Single Lens Goggle System 
• 20 oz. CO2 tank