The Timney Impact AR is a drop-in straight trigger designed for Mil‑Spec AR-15 platforms. It uses a small .156″ pin footprint and a black finish for a clean, understated look. All components are captive in a lightweight aluminum alloy housing while key internal parts are made from hardened tool steels to resist wear. The unit is intended to install using a rifle’s original hammer and trigger pins and incorporates Timney’s proprietary design to eliminate pin walkout.
Key Specifications
- The manufacturer is Timney.
- The model is the Impact.
- The trigger style is a straight (flat) trigger.
- The pin size is .156″ (small pin).
- The stated pull weight is 3-4 lb.
- The housing material is aluminum alloy.
- Internal components include S7 and A2 tool steel (hammer wire-EDM machined from S7; other parts EDM cut from A2 and heat treated to Rc 56-60).
- The finish is black.
- Compatibility is listed as fits most Mil-Spec AR-15 rifles.
- Installation is drop-in using original hammer/trigger pins with a proprietary design to prevent pin walkout.
Built with hardened tool-steel internals and a lightweight aluminum housing, the Impact balances durability with reduced weight while offering a crisp break in a straight trigger profile. Its small-pin footprint and captive components make it a practical upgrade for Mil‑Spec AR-15 builds where a solid, repeatable trigger pull is desired. Whether for range work or precision-oriented AR projects, the Impact provides a reliable, no-nonsense option that focuses on function and longevity.





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