Empire BT Battle Tested Paintball Delta Elite Upgrade Kit For BT-4 Marker AEG Rifles Fill your air system leaving

Fill your air system leaving your pack on

and Barometer

Dual stainless steel pump rods for maximum stability

Airsoft Innovations Inc

modes & settings to make your gun perform to its full potential and even easier to use

Empire BT Battle Tested Paintball Delta Elite Upgrade Kit For BT-4 Marker AEG Rifles Fill your air system leavingThe Empire BT Delta Elite Upgrade Kit will transform your BT 4 Combat into a serious milsim SMG! The Delta Elite Upgrade Kit bolts onto the BT 4 Combat to give it the look and feel of the classic H&K MP5SD submachinegun. In addition to the telescoping stock and mack magazine, the Delta Elite Kit comes with the legendary Apex barrel for adjustable extra range, flatter trajectory, and trick shot capability! Features Fits any BT 4 model marker Realistic