The Bifrost is a professionally manufactured tracer developed by Acetech for Spring, AEG, HPA and GBB replicas.

Made from high quality materials and components, Bifrost is a ready-to-use tracer unit with a small size and futuristic appearance. The module is equipped with a threaded base and a safety front cap and has a diameter of 30 mm, a length of 81 mm and a weight of 60g. The light unit illuminates both green and gel BBs and operates at up to 35 shots per second.

The Bifrost operates in three modes - Tracer Mode which irradiates the BBs, Flame Mode which mimics the muzzle flash of a real gun, and the combination of both. Tracer and Flame Mode mimics the visual effect of tracer ammo and muzzle flash when firing live ammo. In addition, both Tracer and Flame Mode are adjustable in RGB to easily change the color of the flash and tracer or mix them in a rainbow.

The integrated Li-Po battery is charged via a USB Type-C port and is not replaceable. The intelligent power control and shake-and-on system reduce power consumption and extend battery life. A low power indicator diode is located on the tracer for easier operation.

The Bifrost is compatible with the Thor, Predator Mk III and Raider silencer shells.