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The stock trigger on a SIG MCX gets the job done, but it leaves a lot of accuracy on the table. This TriggerTech Adaptable two-stage flat trigger is a drop-in unit built specifically for the MCX platform, and it takes that rifle from serviceable to genuinely fun to shoot. At the heart of it is TriggerTech's Frictionless Release Technology, which swaps the usual sliding sear engagement for a free-floating roller captured between the sear and trigger. The result is a short, two-stage pull with a 1911-style feel, a true zero-creep break, and an extremely short reset.
That roller design is the whole story here. Because there is no friction to fight through, the break feels cleaner than the number on the gauge suggests, and many folks running it report the pull feeling a touch lighter than a comparable friction trigger. Overtravel comes in under 0.015 inches and the reset is quick and tactile, so follow-up shots stay fast and predictable whether you are ringing steel or running drills.
The Adaptable model earns its name with CLKR Technology. You can adjust pull weight anywhere from 2.5 to 5 pounds in 2-ounce increments using a set screw, and a detent lets you feel each click so there is no guesswork. Move from a light 2.5-pound match setting to a heavier duty pull in seconds. Changing the weight does not affect hammer force, so you get dependable primer strikes at every setting thanks to the flat wire hammer spring.
The internal components are hardened 440C stainless steel housed in a 7075 aluminum shell, with a Black PVD coating on external parts for corrosion resistance and a clean look. This trigger is engineered for the MCX, so it works alongside the platform's firing pin safety latch where a standard AR trigger would not. It uses mil-spec 0.154-inch pins, though the pins themselves are not included in the box.
Yes, this is a drop-in unit engineered specifically for the SIG MCX platform, and it works with the rifle's firing pin safety latch that keeps standard AR-15 triggers from functioning. Owners report running it across MCX variants including the Virtus and Spear LT. It uses mil-spec 0.154-inch pins for installation.
The Adaptable model uses CLKR Technology, which lets you tune the pull anywhere from 2.5 to 5 pounds in 2-ounce steps with a set screw. A built-in detent gives you a click for each increment so you can feel exactly where you are without a scale. You can reach the adjustment with the upper separated from the lower.
No, the pins are not included in the box. This trigger is set up for mil-spec 0.154-inch pins, so if you are reusing the factory MCX pins you should be good to go. Grab a spare set of anti-walk or standard mil-spec pins if you want a backup on hand.
That comes down to the Frictionless Release Technology and its free-floating roller, which removes the drag you feel on a typical sliding sear trigger. With zero creep in the break, many folks find the trigger feels around half a pound lighter than the same measured weight on a friction-based trigger. The break just feels cleaner and more predictable as a result.
| UPC | 885768002288 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | ARCTBB25NNF |
| Model |
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