BT Delta

The BT Delta, also called the BT-4 Delta, was a .68-calibre mechanical semi-automatic paintball marker made by BT Paintball. It used the BT-4 platform with furniture styled after the Heckler & Koch MP5. Retailer Paintball-Online documented the Delta in stock by December 2007.[1][2]

Design

The Delta had a retractable stock, a barrel shroud, front and rear sights and a curved mock magazine. Paintballs entered through a hopper and feed elbow. The magazine was cosmetic.[1][2]

Delta Elite

The Delta Elite was documented by March 2008. It retained the retractable stock and mock magazine, and added an MP5SD-style front shroud, an Apex barrel, an electronic grip frame and a sound-activated Rip Clip loader.[3][4]

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
3. Paintball-Online, The New BT-4 Delta Elite Paintball Marker, 8 March 2008
4. BT Paintball Designs, Delta Elite owner's manual