{"product_id":"acetech-bifrost-mkii-tracer-unit","title":"Acetech Bifrost MKII Tracer Unit — Rainbow Flame, 14mm CCW","description":"\u003cdiv style=\"background: #edfaf1; border-left: 4px solid #27ae60; padding: 12px 16px; border-radius: 0 6px 6px 0; margin: 0 0 16px; font-size: 13px;\"\u003e\n\u003cstrong style=\"color: #1a6b3a;\"\u003eAcetech Bifrost MKII — rainbow muzzle flame and hyper-bright tracer, in one compact unit.\u003c\/strong\u003e It tracks up to 35 rounds per second and threads both rifles and pistols out of the box.\u003c\/div\u003e\n\u003cp\u003eThe original Bifrost earned its reputation by keeping up when the rate of fire climbed. The MKII takes that and adds the thing people actually notice from across a field: \u003cstrong\u003emulti-colour rainbow flame effects\u003c\/strong\u003e at the muzzle, produced by high-intensity RGB LEDs and beam-tracking optics rather than a single fixed colour.\u003c\/p\u003e\n\u003cp\u003eYou get \u003cstrong\u003efour lighting modes\u003c\/strong\u003e, cycled with the rear power button. Rainbow flame for maximum spectacle, single RGB colour if you want a consistent look, pure flame for a fiery orange muzzle blast that suits milsim, or tracer only when you just want to see where your rounds are going. It changes the character of the gun entirely depending on which you pick.\u003c\/p\u003e\n\u003cp\u003eThe tracer side is where the engineering matters. High-power internal LEDs charge \u003cstrong\u003egreen luminous tracer BBs\u003c\/strong\u003e to a genuinely bright trace, and the optical sensors hold that illumination consistently at up to \u003cstrong\u003e35 rounds per second\u003c\/strong\u003e. That covers fast AEGs, HPA builds and snappy gas blowback pistols without the trail thinning out in the middle of a burst — which is exactly where cheaper units give up.\u003c\/p\u003e\n\u003cp\u003ePractical details are well judged. It powers on automatically when it detects movement and sleeps after inactivity, so you are not flattening the battery because you forgot to switch it off. The lithium cell charges over \u003cstrong\u003eUSB-C\u003c\/strong\u003e and delivers thousands of shots per charge. The shell is anodised CNC aluminium alloy rather than polymer.\u003c\/p\u003e\n\u003cp\u003eThreading covers both ends of a loadout: \u003cstrong\u003e14mm CCW female as standard, with a 11mm CW adapter included in the box\u003c\/strong\u003e, so the same unit moves between a rifle and a pistol without buying anything extra.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 16px; color: #1b3a6b; margin: 18px 0 8px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; margin: 0 0 18px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background: #1B3A6B; color: #fff;\"\u003e\n\u003cth style=\"padding: 7px 12px; text-align: left;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"padding: 7px 12px; text-align: left;\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eType\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eTracer unit with multi-colour flame effect\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eSupported BBs\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eGreen luminous tracer BBs; standard BBs for flame effect only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eMaximum rate of fire\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eUp to 35 RPS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eLight modes\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eMulti-colour rainbow, single RGB colour, flame only, tracer only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eThread\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003e14mm CCW female, 11mm CW adapter included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003ePower\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eBuilt-in USB-C rechargeable lithium battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003ePower management\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eAuto power-on by vibration, auto sleep after inactivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eBody\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eAnodised CNC aluminium alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background: #f5f5f5;\"\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eIn the box\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eBifrost MKII unit, 11mm CW adapter, USB-C charging cable, user manual\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eBrand\u003c\/td\u003e\n\u003ctd style=\"padding: 7px 12px; border: 1px solid #eee;\"\u003eAcetech\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"font-size: 16px; color: #1b3a6b; margin: 18px 0 8px;\"\u003eGood to know before you buy\u003c\/h2\u003e\n\u003cp\u003eThe tracer function needs \u003cstrong\u003egreen luminous tracer BBs\u003c\/strong\u003e — the unit charges them as they pass, and standard BBs will not glow. The flame effect works with any ammunition, so you get something out of it either way.\u003c\/p\u003e\n\u003cp\u003eCheck your site’s rules before a night game. Most UK sites are fine with tracer units, but a few restrict bright muzzle effects indoors.\u003c\/p\u003e\n\u003ch2 style=\"font-size: 16px; color: #1b3a6b; margin: 18px 0 8px;\"\u003eFrequently asked questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow is it different from the original Bifrost?\u003c\/strong\u003e\u003cbr\u003eThe MKII adds multi-colour rainbow flame effects and four switchable lighting modes, in an upgraded compact housing. The original produces a single-colour effect. Both charge green tracer BBs; the MKII tracks up to 35 RPS.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo I need tracer BBs?\u003c\/strong\u003e\u003cbr\u003eFor the tracer function, yes — green luminous BBs. The flame effect at the muzzle works with any standard BB, so the unit still does something without them.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it fit my pistol?\u003c\/strong\u003e\u003cbr\u003eYes. It is 14mm CCW female as standard and a 11mm CW adapter is included, which covers most gas pistols as well as rifles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it keep up with my HPA gun?\u003c\/strong\u003e\u003cbr\u003eUp to 35 rounds per second, which covers fast AEGs, HPA builds and gas blowback pistols. That is where slower units start losing the trail mid-burst.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I change the mode?\u003c\/strong\u003e\u003cbr\u003ePress the rear power button to cycle through rainbow, single colour, flame only and tracer only.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill it drain the battery in my bag?\u003c\/strong\u003e\u003cbr\u003eIt powers on when it senses movement and sleeps automatically after inactivity, which limits that. Charge over USB-C before a night game as a matter of habit.\u003c\/p\u003e\n\u003cdiv style=\"background: #1B3A6B; color: #fff; padding: 12px 16px; border-radius: 6px; margin: 18px 0 0; font-size: 13px;\"\u003e\n\u003cstrong style=\"color: #fff;\"\u003e💡 Titan Forge Airsoft tip:\u003c\/strong\u003e you will want \u003ca href=\"\/collections\/ammo\" style=\"color: #cdd6f4;\"\u003egreen tracer BBs\u003c\/a\u003e to get the most from it. Compare with the \u003ca href=\"\/products\/acetech-bifrost-tracer-unit\" style=\"color: #cdd6f4;\"\u003eoriginal Bifrost\u003c\/a\u003e or browse all our \u003ca href=\"\/collections\/tracer-units\" style=\"color: #cdd6f4;\"\u003etracer units\u003c\/a\u003e, or \u003ca href=\"https:\/\/wa.me\/447874452357\" style=\"color: #cdd6f4;\"\u003emessage us on WhatsApp\u003c\/a\u003e.\u003c\/div\u003e","brand":"Acetech","offers":[{"title":"Default Title","offer_id":55646129291640,"sku":"4575336144","price":94.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0562\/8097\/3450\/files\/AcetechBifrostMKIITracerUnit_TitanForgeAirsoft-1.webp?v=1788283907","url":"https:\/\/www.titanforgeairsoft.com\/products\/acetech-bifrost-mkii-tracer-unit","provider":"Titan Forge Airsoft","version":"1.0","type":"link"}