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Hiperfire EDT Designated Marksman, AR15/10 Trigger Assembly


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Hiperfire EDT Designated Marksman, AR15/10 Trigger Assembly



  • Drop-In “AR15/10” Fire-Control for .223/5.56 NATO, 300 BLK, .308/7.62 NATO
  • Enhanced Duty Trigger
  • “Duplex” Trigger Bow, High or Low Finger Placement
  • 2 User-Adjustable Trigger Weights of 4+ and 6+ lbs
  • Single Stage, Semi-Auto
  • For Standard AR Lower Receivers Using Small Pins of 0.154-inch Diameter
  • “Hint” of Creep, Slightly Shorter Travel to Break from Moment of Reset
  • Clean Break, Best-In-Class Fast/Positive Reset
  • Faster Hammer Lock-Up than Stock, MIL-spec Strike Energy
  • Heat-Treated Alloy Steels
  • Installs without Removal of the Safety Selector
  • US Patent 9,175,917, Others Pending
  • Made Entirely in the USA by Americans

The EDT3 features a duplex, or two-position trigger bow. Place the finger high in the curve and the pull weight is approximately 5 or 6 lbs with the supplied red hammer spring installed. Or, with the finger riding low on the vertical tip, the weight is approximately 4 or 5 lbs. when the supplied green hammer spring is installed.


This trigger is directed to DMR use. Run the finger high in tactical situations, or run it low in longer range precision scenarios. It’s also appropriate for home defense and hunting applications as the trigger weight is higher than the 24 series triggers. It’s the “AR” fire-control upgrade we’ve all dreamed of. For installation and operational features of the HIPERTOUCH® EDT3 watch the videos in the playlist above. View this graphic, AR-15LowerCavity.PDF. HIPERTOUCH® FCGs may not work in lowers with FCG holes that are outside the MIL-Spec toleranced dimensions shown in RED.


HIPERTOUCH® FCGs have uniquely solved two problems with stock AR triggers and AR trigger upgrades in general: 1) High Trigger Weight, and 2) Low Hammer Fall Energy.

Trigger Weight: The real culprit behind high trigger pull weight is high sear impingement force that produces high friction. To get around that, the stock “AR” trigger and hammer mechanical advantage was changed and the sear optimized.

Hammer Fall Energy: Even with trigger weight, high energy MIL-spec hammer fall is maintained. The best of two worlds.

HIPERTOUCH® FCGs retain Eugene Stoner’s design of simple elegance while remaining very robust, without the gritty feel. Shooting for high accuracy is no longer an almost impossible chore. It’s no longer necessary to improve the stock performance by manually polishing the high-friction trigger and hammer sear surfaces, where the end result was only marginally better anyway.

The EDTs were designed for the broader high performance shooting market typified by three segments that taken together, demand a unique suite of features at more pedestrian pricing. Those segments are: Law Enforcement, NRA type long range competition shooting, and the multi purpose sport, hunting, and home defense rifle. All these segments have one trigger specification in common: pull weights of greater than 4 lbs. The EDTs meets that specification and more.

The sear design paradigm used in the 24s has been included making for a very smooth and flat pull with only a hint of creep, a clean break with little over travel, and a fast positive reset. If you have put your finger on a 24E, 24C, or 243G, and can imagine the higher EDT3 pull weights, you’re very close to appreciating what the EDT3 will feel like.
Second, the EDTs sports MIL-spec hammer fall even though the pull weights are less than MIL-spec’s 7-9 lbs. The two hammer springs that give the 6 to 6 lb pull weights are even heavier than the stock MIL-spec hammer spring. This is possible because the EDTs’ hammer and trigger mechanical advantage pioneered by HIPERFIRE in its design of the 24 product family has been included. So, the EDTs’ hammer still strikes well within MIL-spec’s hammer energy range with lowered trigger weight.

Third, the EDTs’ lock time is faster than MIL-spec, like that of the 24 family, due to the use of the heavier springs and by locating the center of hammer mass closer to the pivot axis, which causes it to spin up to speed faster.

But, there’s more … an entirely new feature found in the EDTs and no where else. Remember, ED stands for Enhanced Duty. When thinking about the needs of Law Enforcement, the Military, the home defender, and the ultimate reliability demands placed on the AR rifle, do you think of very adverse and dirty conditions? Now, imagine when and how you really want that rifle to work? The EDTs’ trigger was designed for that scenario.

First, fine particulate debris and carbon fouling can accumulate in the bottom of the disconnector slot of stock triggers causing the disconnector to jam. If that should happen, semi auto function may be compromised. In contrast, that the EDT trigger slot has holes running the length of its bottom so that the disconnector actually becomes a self-cleaning device, pushing out any debris by that same disconnector toggle action.

Second, notice that the rear underside of the trigger has been raised and the end ramped up and away, increasing the gap clearance between it and the floor of the lower’s fire control cavity. What does that do? Well, if a blown primer cup or bits of gravel should be blown into the lower through the ejection port when shooting prone, they could end up under the trigger preventing it from letting off completely thus preventing hammer reset. Many, especially 3 gunners, have had this very thing happen to them. This new EDT trigger feature can minimize this occurrence.



More Information
Product Type Trigger
Manufacturer Hiperfire

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