BT-4 ERC

The BT-4 ERC was a factory configuration of the BT-4 Combat sold by BT Paintball. It combined the .68-calibre blowback marker with an electronic grip frame, a side-mounted Rip Clip loader and an Apex barrel. Retailer Paintball-Online reported the package back in stock on 6 December 2007.[1][2]

Equipment

The electronic grip provided semi-automatic and selectable burst and automatic modes. The Rip Clip used a sound-activated motor to feed paintballs from the side of the receiver. The Apex barrel used an adjustable muzzle attachment to apply spin to the paintball. Empire's later BT-4 series manual includes an ERC parts diagram and separate diagrams for its electronic grip and Rip Clip.[1][2]

References

1. Paintball-Online, BT Delta, ERC and Rip Clip Paintball Markers and Loaders, 6 December 2007
2. Empire Battle Tested, BT-4 Series Markers owner's manual, ERC schematic and operating sections