Heckfire by ShootingSight: The Best Trigger for H&K & Clone Rifles (9mm / 5.56 / 7.62)

Available direct from the manufacturer: HECKFIRE 2-STAGE TRIGGER FOR MP-5, MP-5K, PDW, HK 91/93/94, G3, CLONES

One of the shortcomings of H&K roller-delayed long guns has always been their triggers. As they come form the factory (with the exception of niche items like the PSG-1 trigger pack) they are long, heavy, and generally unpleasant. Good smiths can make them a bit better (I used a Bill Springfield trigger in my G3 for a while), but they are still tragically bad by comparison to modern AR triggers.

Well, ShootingSight has definitely changed that with their “Heckfire” (an odd name; possibly derived from “HK-Fire”?) drop-in trigger. It offers a very crisp, sub-5-pound trigger that can be used in any of the roller-delayed rifles made by HK, or their clones. The downside is price, at $400 – although frankly this is not all that much more expensive than a lot of the good aftermarket AR triggers available today. Along with the trigger press, you also get an assortment of selector levers that you can use to set up your trigger with left, right, or ambidextrous controls.

It is important to not that the Heckfire comes without the ejector lever, spring, and pin. You will need to either get these separately or just take them out of the stock trigger in your rifle and install them into the Heckfire module before you put it in the gun. The reason for this omission is that the ejector lever is different for each caliber of rifle – so shipping without one allows the Heckfire unit to be universal (and reduces the cost).

I’ve had two of these units from Heckfire (full disclosure: both were provided for free), and have used one in my G3 for most of a year now, including taking it to Finnish Brutality 2023. It has run perfectly, and it makes a serious difference in the shootability of the rifle. I have a second unit that is going into an SP5, and that will be getting some video coverage soon.


  1. “Heckfire” (an odd name; possibly derived from “HK-Fire”?)
    Or they are great fans of Edmund Heckler but want to delete Theodor Koch from history.

  2. H&K would be well thought of for offering their own version, but the corporate arrogance to think their products are beyond improvement must be staggering. Is it bureaucratic inertia? Hidebound dullards lacking imagination running the place? Maybe it’s time for a little shakeup.

    • I think the biggest problem with the H&K leadership is that they are uninterested in civilian sales. I have a PTR clone that I am pretty happy with.

      • H&K are not exactly uninterested in civilian sales as in the past they developed and sold special civilian only rifles like the SL-6 and -7 or dedicated hunting rifles. They are more hampered by German gun laws (e.g. sharing an assembly line with “weapons of war” is verboten for civi gun manufacturing) and export laws as well as foreign countries’ import laws. A company mostly doing sales to governments that is normally thousands to sometimes millions of firearms and services around that. faffing about with laws on the civilian side changing every other year or so is just too annoying to bother with. Although on the european market you can buy civilian versions of the HK416 and G36 and the AR-10ish rifles.

        OTOH in regards to better triggers for the roller-delayed family H&K has developed quite a few actually for the PSG-1, MSG-90 and G3-SG1. Probably a few more that never left the r&d lab. And H&K never bothered selling these individually, because again too much hassle legally. Those should all be out of patent protection by now, so an entrepreneurial little company could start copying those.

  3. Art Neergard is a great guy with great products. When the Tavor was released several manufacturers announced that they would be making trigger packs for that gun. I tried them all but the Shooting Sight Tav-LE is what I stayed with. I want to put one of these in my PTR 32.

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