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The Rise Armament RA-140 SST is the trigger that quietly does the heavy lifting on your AR build. It's a self-contained, single-stage unit set at a 3.5 lb pull, and this Live Free or Die edition adds a special eagle design and the state motto engraved right on the housing. If you've been running the factory mil-spec trigger with its heavy, gritty 7 to 10 pound pull, dropping this in is one of those upgrades you feel on the very first shot.
What makes the RA-140 worth the swap is how clean it breaks. There's very little take-up before you hit the wall, then a crisp break followed by a short reset you can feel through your finger. That combination helps steady the gun during the shot and lets you get back on target faster for follow-ups. The curved trigger shoe gives you a familiar, comfortable feel that most folks coming off a stock trigger take to right away.
Rise builds these from heat-treated tool steel and aluminum, and the whole fire control group is assembled inside a machined housing to strict AS9100 aerospace standards. That housing is the reason installation is so painless. The trigger drops into your lower as a single piece, the included anti-walk pins go in, and you button the receiver back up. Most people knock this out in 15 to 20 minutes with a set of Allen wrenches, and there's nothing to fine-tune or adjust once it's seated. A dab of Loctite or Vibratite on the pins is a smart move before you run it.
This trigger group works in AR-style lowers built to mil-spec dimensions, which covers a huge range of calibers including .223/5.56, .308, 6.5, and 9mm. It also carries a drop safety feature for peace of mind. Whether you're setting up a range gun, a hunting rifle, or a competition build, the RA-140 gives you a big jump in feel and precision without a big project on the bench.
Not at all. It's a fully self-contained drop-in unit, so you remove your old trigger, set this one into the lower, and secure the anti-walk pins. Most people finish in about 15 to 20 minutes with basic Allen wrenches and no gunsmithing, and there's nothing to adjust once it's in. A little Loctite or Vibratite on the pins is a good idea before you run it.
It's a single-stage trigger set at 3.5 pounds, and that weight is fixed rather than adjustable. You get minimal take-up, a crisp break, and a short reset. Compared to a stock mil-spec trigger in the 7 to 10 pound range, it's a noticeable improvement in feel and control.
Yes. The RA-140 fits AR-style lowers built to mil-spec dimensions, which covers calibers like .223/5.56, .308, 6.5, and 9mm. Folks run it in everything from AR-15 range guns to .308 AR-10 platforms. If you're building a pistol-caliber carbine, Rise makes a dedicated PCC version better suited to that job.
Mechanically it's the same proven RA-140 Super Sporting Trigger with the 3.5 lb single-stage pull. The difference is cosmetic, featuring a special-edition eagle design and the "Live Free or Die" motto engraved on the housing. If you like a little personality on your build, it's a nice touch without changing how the trigger performs.
| UPC | 850043415343 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | RA-140-LFOD-AWP |
| Product Type | Trigger |
| Model | |
| Color | Black |
| Style | Mil-Spec |
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