Timney Impact AR Trigger

Timney Impact AR Trigger

$134.99 $127.99

Drop-in, 3-4 lb pull, .154 Pin, Curved
Availability: In stock SKU: IMPACTAR


Timney Impact AR Trigger

Newest AR Trigger from Timney

Timney was asked to come up with an AR trigger at a lower price point without sacrificing quality for budget minded AR builders. With many of the same features as the flagship 667S, Timney would like to introduce the Impact AR trigger – the next trigger in the line of excellent triggers from the craftsmen and women of the world’s finest trigger

Timney’s engineers figured out a way to machine the parts from billet steel (no skimping with metal injection molding or stamped, old-school parts), assemble the triggers, and still hand-test this trigger by our trigger technicians at a price that you asked for – $149.99. The Impact will give you a crisp, clean, 3 to 4 pound-range break and will drop in to all Mil- Spec AR’s.

Timney Triggers is dedicated to ensuring our customers a lifetime of hassle-free shooting enjoyment. The last step of the manufacturing process, each trigger is hand assembled, tested, and calibrated for the specific rifle model it is intended for before it’s delivered to the customer’s door.  Timney Triggers is proud to offer a lifetime warranty on all of their products and each trigger is proudly Made in the USA.

Trigger does NOT include Trigger & Hammer Pins!

See our entire selection of high performance AR Triggers.

Installation Instructions


  • Single-stage 3-4 lb trigger pull
  • Fits AR Platforms with .154 pin holes (Small Pin)
  • Drop-in design
  • Wire-EDM machined
  • Made in the USA.

Product Information

Manufacturer:  Timney Triggers
Model:  Impact AR
Style:  Drop-in
Platform: AR-15  | AR-10
Type: Single Stage
Pin Size: 0.154 MilSpec
Pull: 3-4 lb
Warranty: Lifetime
MSRP:  $149.9

Arm or Ally is a stocking dealer for  Aero Precision, Faxon, Polymer80, Ballistic AdvantageToolcraft, SB Tactical, Holosun and more. See our growing inventory of AR Parts, Firearms and Reloading Components.

Additional information

Weight 4 oz
Dimensions 5 × 2 × 1 in



AR10, AR15

Trigger Shoe


Pin Size

0.154 (Small Pin)

Pull Weight

3lb, 4lb

What Is Trigger Pull weight?

Pull weight is the amount of pressure, in ounces or pounds, required to fire the trigger. Or in other words, how hard you have to squeeze the trigger to shoot your rifle. Timney Trigger experts at our Phoenix, Arizona plant hand-test every trigger in its intended action and then set the pull weight at our factory standard, 3 lbs.

If you prefer a different pull weight you simply select it from the drop down above and your Timney Trigger will be customized to your preference.
The #1 reason to replace your factory trigger with a Timney is accuracy. A lighter, crisper, more consistent trigger pull will make you more accurate with your firearm.

Below is a guide for pull weight selection:

2-2.5 pounds
Light trigger pull weights are great for people shooting lighter weight rifles as they can help keep you on target during the shot. Also common weights for target shooting from a bench.

3-3.5 pounds
By far the most common trigger pull weights -this is great for virtually all applications including target shooting, hunting and 3-gun competitions.

4.0 pounds+
Heavy trigger pull weights are good for cold weather hunting or applications where you may be shooting with gloves on.