The tracer unit has RGB LED's at the end which are programmed to flash as the BB exits the barrel. Tracer BB's are not required for the muzzle flash setting. Although all this means the Bifrost perhaps loses a bit of its intimidation factor compared to, say, a 6-inch AT1000, these dimensions do make it t more useful for CQB or maneuvering around tight quarters and far less of an over-the-top option for airsoft pistols, pistol carbines and smaller SMGs. Features Overall: Good tracer that looks great, and will have everyone at the field asking if that's the "new rainbow tracer!"“ The Acetech Bifrost Tracer unit requires that the internal battery is charged before the first use and also must be recharged every 2 months at minimum to maintain battery health. This particular variant of the AcetechBifrost has been commissioned by Lancer Tactical and has subtleLancer Tactical markings on the rear cap and another, slightly less subtle clue that this Bifrost is something a bit different. The outer case is finished in agorgeous "Heat Gradation" AKA "Rainbow Effect" coating, making the unit really pop, even when it's turned off! This Lancer Tactical Special Edition Bifrost would be the icing on the cake of any Heat Gradation build, and would give any AEG or GBB a stylish accent which is sure to turn heads!

That said, it can be a very interesting option for machine gun players, as it closely simulates real steel tracer bullet placement in a belt (usually every 4th or 5th shot or so) and can add a great deal of realism to play. Tracer mode: Standard/Sniper - Standard provides muzzle flash & tracer, Sniper provides tracer only The second mode is known as "Sniper Mode", and will illuminate your BBs but keeps the muzzle flash turned off to aid in concealment. This is important when stealth is a priority,whether inCQB or outdoors, as the muzzle flash is so bright it will definitely draw eyesand if you are the sneaky type you will want to avoid this.The ACETECH Bifrost M RGB tracer unit simulates muzzle flash with multi-colored flame effects. The effect of flame depends on the volume of gas or fog around the muzzle, more volume makes for better effects. There is a downside to having so many features in one device – it can take some time for users to become familiar with each function and may require them to read the product manual before use. Bottom Line Introducing the Acetech Bifrost BT. Not only do you get the tracer and muzzle flash feature which is compatible with standard, Green and Red BB's, you also get Bluetooth functionality. This new functionality brings the ability customize the tracer and muzzle flash settings, as well as measure the FPS and ROF of your weapon via the built in Chronograph. Where the Acetech Bifrost really stands out as an airsoft tracer unit is in its rather extensive set of features. Demo Mode - Each different mode is demonstrated for 5 shots and Dynamic Rainbow mode for a single shot

The Bifrost is capable of being used on spring, AEGs and GBBs, which gives it added flexibility for those with more extensive airsoft collections. The Bifrost also offers a number of different options when it comes to the types of flame it puts out, with seven colors to choose from, including:In flame mode, the gun puts out a bright and solid beam of light that also reflects off of and surrounds each BB fired. Compatible with Green Tracer BBs, Standard BBs and Gel balls (don't shoot gel from your Airsoft gun though!) While perhaps not every player necessarily wants to make such a bold statement in a game, firing off rainbows at your opponent is actually a pretty hilarious and fun option that we feel is certainly worth a try. Performance The battery is charged via a standard USB-C cable, which is fairly ubiquitous and easy to find if you’re the type player who misplaces charging cables, and it does mean that you won’t have to carry spare batteries with you, which is nice. In general, we found the Acetech Bifrost to be able to illuminate green tracer BBs brightly and accurately, giving them a strong and long lasting green glow that should help users in low light conditions. Tons of cool features