Upgrade your Game! Take your BT-4 and give it an authentic military look with the Delta Upgrade Kit from Empire BT Paintball. Convert your BT-4 to look like the BT Delta. The Kit contains a barrel with shroud, stock, magazine, top shroud and new clamp elbow. Begin with a standard BT-4 or any of its variants and modify it into the submachine gun used by Special Forces around the world. Attain the look of real military hardware with the Delta Upgrade Kit from BT Paintball.

Fits any BT-4 model marker
Authentic SMG styling

Kit Includes:
SMG style 9" barrel kit (Apex Ready - Apex tip sold separately) with MP5 shroud
Collapsible stock
Magazine, Picatinny mounted
Picatinny mount Clamp Elbow with shroud