The Timney Impact AR-ST is a self-contained single-stage drop-in trigger with a straight shoe for AR-15 and M4 pattern rifles.
The value drop-in with a modern edge — Timney's Impact AR straight-shoe puts flat-trigger feel within everyone's reach.
The Timney Impact AR-ST pairs the Impact line's clean single-stage break with a straight trigger shoe — the modern profile that encourages a lower finger position, adds leverage and promotes a straight-to-the-rear press. Housed in a fully self-contained drop-in module, it installs in minutes and delivers exactly the pull Timney's technicians tested before boxing it.
For builders who want the flat-shoe experience without flagship pricing, the Impact AR-ST is the honest answer: real Timney internals, real quality control, and a break that makes factory triggers feel agricultural.
Why shooters choose the Impact AR-ST
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Straight trigger shoe — modern feel, better leverage
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Clean single-stage break — consistent shot after shot
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Self-contained drop-in module — minutes to fit
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Timney factory quality — the 1946 standard at a value price
What the Impact AR-ST fits
Drops into AR-15/M4 pattern lower receivers using the existing pin holes, which includes UK straight-pull AR-15 builds — the straight shoe and low finger position suit the deliberate, aimed shooting a straight pull is used for. The unit is self-contained, so confirm your trigger pin size before ordering. Complete function checks before live fire.
Specifications
| Platform |
AR-15 / M4 |
| Fits |
Standard AR-15 / M4 lower receivers, existing pin holes |
| Type |
Single-stage drop-in trigger, straight shoe |
| Finish |
Black |
| Made in |
USA |
| Brand |
Timney Triggers |
| MPN |
IMPACT-AR-ST |
Flat-shoe feel, entry price. Order the Impact AR-ST today — in stock at Xtreme Tactical Gun Parts with free tracked UK delivery in 7–10 days.
Explore more: all Rifle Triggers, AR-15 Parts & Accessories or browse all Timney Triggers.
