Acetech Bifrost BT Tracer Unit

Brand:Acetech Construction: Aluminum Threads: 14mm CCW (11mm adapter included) BB Compatibility: Supports green & red tracer BBs Battery: Li-ion, rechargeable (Charging time takes up to 2 hours) Product Dimensions: 32mm x 90mm (D x L) Color: Black Features Bifrost muzzle flame effect Customized flame colors on AceSoft App Chronograph and tracer function combos Fast charging with a USB-C port Supports green & red tracer BBs, as well as standard BBs