MPN: 671


  • Self-contained drop in design
  • Lightweight 6061-T6 CNC Machined aluminum housing
  • Heat treated Tool steel trigger and sears
  • Single stage


  • Type: Single-Stage
  • Pull Weight: 4 lbs.
  • Pin Size: Small Pin (.154)


  • AR-10 / LR-308 platforms

*This Timney AR-10 Skeletonized Trigger (Model 671) is for the AR-10/308 AR, if you need a AR-15 model, please look at the Timney AR-15 Drop In Skeletonized Trigger, or the Timney AR-15 Drop In Competition Trigger.

*This tigger will not work on AR-10 / .308 AR that have pins .168-.174" in diameter.

NOTE: If you are using this trigger for a polymer lower receiver, please contact Timney for a special plate.


If you want a self-contained, 100 percent drop-in replacement trigger for your AR-10 / 308 AR, you will find the drop-in Timney AR-10 Skeletonized Trigger to be exactly what you need.

A low-quality trigger can effectively ruin even the most well-designed .308 AR rifle. Triggers that feature excessive amounts of “creep” can make it extremely difficult for the shooter to accurately gauge when the rifle is about to fire. Not knowing when your rifle will fire is counter-productive to occupations that require extreme accuracy, such as shooting competitions or law enforcement operations.

As the owner of an AR-10, you understand the importance of high-quality parts. Timney has been producing well-made triggers since 1946. Proudly made in the United States, it’s little wonder that the Timney trigger has found its way into the guns of today’s Americans.

Why Timney AR-10 Skeletonized Trigger?

The trigger hammer is EDM-machined from S7 tool steel for superior strength and durability. The Teflon-nickel coating of the hammer further enhances its function, offering you an exceptionally smooth pull. The other components are made from A2 tool steel which is heat-treated to a Rockwell hardness of 56 - 60 to ensure that they will last.

This drop in trigger is installed using your original hammer and trigger pins and is designed to resist pin rotation and walkout.

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