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There's a reason so many AR owners point to a trigger swap as the single best upgrade they've ever made to a rifle, and the LaRue MBT-2S is one of the names that comes up again and again in that conversation. Instead of the usual cast or MIM parts found in a factory fire control group, LaRue cuts the trigger and hammer from solid S7 tool steel plates and hand builds each set in-house. The payoff is a two-stage pull that feels the same shot after shot, with none of the grit or inconsistency that mil-spec triggers are known for.
Out of the box the MBT-2S gives you a 2.5 lb first stage take-up followed by a clean 2 lb second stage break, for a total pull right around 4.5 lbs. That's light enough to help with precision work but still plenty safe and predictable for duty or defensive use. If you'd rather run something heavier, LaRue includes a second spring that bumps the total pull up to about 6 lbs, so you can tune the feel to whatever the rifle is being used for without buying a separate kit.
This is a true drop-in unit built for small-pin .154" mil-spec lowers, which covers the vast majority of modern AR10 and AR15 receivers on the market. It comes with its own hammer, both trigger springs, and the hammer and trigger pins needed to install it, so there's no hunting down extra small parts before you can get it into the gun. Just keep in mind it's designed around standard small-pin AR platforms and isn't intended for pistol caliber carbines or older large-pin receivers.
The curved trigger bow finished in black gives a comfortable, natural finger placement that a lot of shooters prefer over a flat bow, especially for general purpose rifles that see time both on the range and in more demanding courses. Between the S7 steel construction, the toolmaker-level fit, and a reset that snaps back with authority, the MBT-2S has built a reputation as one of the better values in the two-stage trigger world, holding its own against triggers that cost quite a bit more.
Yes, as long as it's a small-pin mil-spec lower using .154" hammer and trigger pins, which covers the great majority of modern AR10 and AR15 receivers. Older large-pin receivers using .170" pins won't work with this trigger. If you're not sure what your lower takes, it's worth measuring the pin holes before ordering.
The trigger ships with the lighter spring installed, giving you the standard 4.5 lb pull with a 2.5 lb first stage and 2 lb second stage break. The included heavy spring swaps in easily and brings total pull weight up to around 6 lbs for shooters who want more deliberate feel, which is common for duty or general purpose builds.
It's designed as a drop-in fire control group, so it comes with its own hammer, springs, and pins ready to install with basic AR tools. No fitting or machining is needed on a standard mil-spec lower. Most builders can swap it in during a normal at-home upgrade session.
It's not recommended for pistol caliber carbines, since those builds often use different hammer and trigger geometry than a standard rifle caliber AR. Stick with standard AR10 and AR15 rifle caliber platforms for reliable function. If you're building a PCC, it's worth looking at a trigger specifically rated for that application.
| UPC | 810143180985 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | LTMBT2S |
| Model |
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