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Timney AR-15 Drop In Skeletonized Trigger

  • Timney AR-15 Drop In Skeletonized Trigger Kit
  • Timney AR-15 Drop In Skeletonized Trigger
  • Timney AR-15 Drop In Skeletonized Trigger Top
  • Timney AR-15 Drop In Skeletonized Trigger Back
  • Timney AR-15 Drop In Skeletonized Trigger Bottom

Timney AR-15 Drop In Skeletonized Trigger

Calculated at checkout
$302.79 $242.24

Find Similar Products by Category

MPN: 661-S, 664-S, 665-S


  • 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:
    • Model 661: 3 lbs.
    • Model 664: 4 lbs.
    • Model 665: 4.5 lbs.
  • Pin Size: Small Pin (.154)


  • AR-15 / AR-10 platforms

This Timney AR-15 trigger is a Skeletonized model, if you want a non-skeletonized model, please look at the Timney AR-15 Drop In Competition Trigger.

Will not work on AR-15 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.


Why should you settle for a clumsy, “creepy” trigger that can cause your AR-15 to “suddenly” lose its accuracy when you try to fire it? If you are currently fighting with a stock trigger that seems to throw a wrench in the works every time you use it, you may want to consider a serious upgrade. Why not the AR-15 Drop In Skeletonized Trigger by Timney?

The pull weight of this Skeletonized Trigger is pre-set at three pounds, four pounds and four-and-a-half pounds. The drop-in design of this trigger enables you to make your replacement using the original hammer and trigger pins of your rifle. This replacement is designed to resist pin rotation and walkout. The single-stage trigger is housed in a 6061-T6 aluminum alloy that’s anodized for durability and strength.

If you are looking for a trigger that will complement your AR-15 and give you a better shooting experience, check this Timney trigger out.

The Timney AR-15 Drop In Skeletonized Trigger comes in 3 LB, 4 LB, and 4.5 LB pull weight.

Why Timney Triggers?

Timney Triggers has been in the business of providing gun owners of all backgrounds with high-quality, creep-free, single-stage triggers featuring a smooth feel and a clean break. Founded by a man who understood the need for easy-to-install triggers following World War II, Timney continues to serve the gun community with triggers unmatched by any other.

Write Review

  1. Accuracy at your fingertips 5 Star Review

    Posted by on 31st Jul 2016

    The Timney drop-in trigger is everything it is advertised to be and more. The ease of the replacement procedure and the smoothness of the single-stage trigger action is absolutely perfect.

  2. An amazing trigger 5 Star Review

    Posted by on 22nd Jul 2016

    Nice light 3lb pull. A clean break with absolutely no travel and a very short reset. Very satisfied with this trigger.

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