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. We say so-called sniper mode because, once set to this, the Bifrost will illuminate every 3rd shot or so, which isn’t exactly something that most players relying on stealth and quiet positioning will really want to be doing. The Bifrost mounts to 14mmCCW male threaded outer barrels directly but also includesan 11mm CW female thread adapter in the box, meaning it will fitmost Airsoft AEGs and GBBRs and with the adapter, you can mount it to WE/Armourer Works GBBpistols or any others which have an11mmCW female threaded outer barrel. If you have a RAVEN, VORSK or Army Armament pistol fear not, you can mount the Bifrost using an aftermarket 12mm CW female to 14mmCCW male thread adapter, so you won't be left out!

Demo Mode - Each different mode is demonstrated for 5 shots and Dynamic Rainbow mode for a single shot The Acetech Bifrost is also water resistant, meaning it can not only stand up to the elements a bit better, but it can also be used with gel BBs as well as plastic ones. Excellent tracer functionality In terms of its overall dimensions, the Acetech Bifrost is, at just over 3 inches long and weighing only a couple ounces, a fairly compact and lightweight barrel-mounted tracer unit. Acetech is one of the leading manufacturers of tracer units in airsoft and, in our opinion, the Bifrost certainly lives up to the company’s reputation.Interestingly, the Bifrost also comes with a “shake to wake” function, where the device will go into sleep mode after 5 minutes of inactivity and “wake up” when given a bit of a shake, something that can help users during longer games, periods of inactivity (e.g. during stalking or maneuvering) or if they’re just the type who forgets to turn things off now and again. Acetech Bifrost User-Friendliness

The design is so compact fits beautifully in the handguard of the rifle and is made of what seems to be a durable metal.

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. The device itself felt pretty solid in hand, being nicely screwed together, and although the internal buttons and switches are small they seemed properly installed and there was no sign of wiggle or looseness that we could see (although obviously you do want to be a bit more delicate when handling its internals). The device does come, interestingly enough, with a 11mm CW adaptor that allows it to fit onto pistols with barrels of that diameter, such as TM Hi Capas, certain WETechs and more. Thanks to its lithium ion battery, the Acetech Bifrost is good for around 24 000 tracer rounds or 12 000 flames, making it a decently long lasting device. Low battery indicator, shake to wake In addition to having seven color options, the Acetech Bifrost can actually mix these colors up into multicolor light beams that can be pretty cool and fun on the field. Good battery life