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Swapping out a gritty factory trigger is the fastest way to shoot your AR better, and the Timney Impact AR straight trigger makes that swap about as painless as it gets. This is a fully self-contained drop-in unit with all the internals captured in a lightweight aluminum alloy housing, so there's no fiddling with loose springs or small parts flying across the bench. It runs a small .156" pin footprint and installs using your rifle's original hammer and trigger pins, with a proprietary design that keeps those pins from walking out under recoil.
The pull weight lands in the 3 to 4 pound range with a break that most people describe as clean and predictable, which is exactly what you want for everything from plinking to more serious range work. The flat trigger shoe gives your finger a consistent, repeatable contact point and a bit more leverage, so the break feels lighter and more controlled than a curved bow at the same weight. Every one of these is hand-assembled, tested, and calibrated before it leaves the shop in Phoenix.
Timney didn't cut corners on the guts here. The hammer is wire-EDM machined from S7 tool steel, which handles repeated impact without chipping, while the rest of the working parts are cut from A2 tool steel and heat treated to Rc 56-60 for a long service life. No metal injection molding, no stamped parts, just billet-machined steel that holds up to heavy use.
This trigger is built for Mil-Spec AR-15 lowers running the small .156" pin size. It is not compatible with AR-10, 15-22, or 7.62×39 platforms, so double-check your lower before ordering. For a standard AR-15 build, install takes just a few minutes with basic tools, and the whole thing is backed by Timney's lifetime warranty and made in the USA.
It's built for Mil-Spec AR-15 lowers using the small .156" pin size. It is not compatible with AR-10, 15-22, or 7.62×39 platforms, so confirm your lower is a standard AR-15 before ordering. If your rifle takes standard-size hammer and trigger pins, you're good to go.
This is a single-stage trigger with a factory-set pull in the 3 to 4 pound range. You get a clean, predictable break with no take-up staging, which is a popular choice for general-purpose and range use. The flat shoe adds a consistent finger contact point and a touch more leverage.
Not hard at all. The whole assembly is captured in one housing, so it drops in as a single unit using your rifle's original hammer and trigger pins. Most people knock it out in a few minutes with basic tools, and Timney's design helps prevent pin walkout once it's seated.
Every Timney trigger is backed by their lifetime warranty. If it becomes damaged or defective under normal use, Timney will repair or replace it at no charge. It's also made in the USA and hand-tested before shipping.
| UPC | 081950467174 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | IMPACT AR-ST |
| Color | Black |
| Length | 7.8500 |
| Model | |
| Product Type | Trigger |
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