1-866-805-9385

The BT Line of markers uses two different styles of barrel threading, pick one of these to help increase your accuracy. BT Delta: A5/X7 BT Delta Elite: A5/X7 BT-4 Combat: A5/X7 BT Omega: A5/X7 BT TM-7: Autococker BT TM-15: Autococker  BT Trracer: Autococker