AceTech Bifrost BT Rechargeable Tracer Unit SR25 Full metal receiver

Full metal receiver

You will be able to use our other modular bases (such as drum and MP5) with this adapter (available separately)

height: 100%

while a deeper pull will cause a burst or fully automatic fire

Provide stable and smooth blowback cycling

AceTech Bifrost BT Rechargeable Tracer Unit SR25 Full metal receiverRainbows to the extreme! Now light up red or green BBs, with custom flame effects, and chrono in one unit!!! Bifrost muzzle flame effect Customized flame colors on AceSoft APP Chronograph and tracer function combos Rechargeable built in Lithium Polymer battery with fast charging USB C port Auto shutoff after idling for 2 hours Comes with a 14mm CCW to 11mm CW adapter Support green tracer BBs, red tracer BBs, and standard BBs Made in Taiwan with FCC,