HECKFIRE 2-Stage Trigger for MP-5, HK 91/93/94, G3, Clones


HECKFIRE trigger for MP-5, HK 91/93/94, G3, Clones.

Converts ANY lower to an AMBI. The dropdown choice (AMBI vs SEF) is to tell us the size of the hole in your lower frame. FYI, The option for having  Selector Switches on just one side vs. both sides is coming soon but not currently available.



ShootingSight 2-STAGE MP-5 TRIGGER.  ShootingSight is pleased to announce the HECKFIRE, the first true 2-stage trigger pack for the MP-5, clones, or other HK 91/93/94, G3 pattern based fire control groups.

Roller lock actions rock!  ShootingSight has designed the ideal trigger to match.

In choosing the best trigger design, we took a cue from the greatest battle rifle ever devised: the M1 Garand.  The M1 has a superb 2-stage trigger.  It is robust, but keeps the crispness and accuracy of a two-stage trigger pull.  The M1 concept was married with tool steel, CNC machining, and aerospace surface coatings.  The result is the HECKFIRE, a 2-stage, semi-only trigger which is robust, smooth, and crisp.


· 2-stage, giving a predictable razor sharp break.

· 3lb first stage, 5lb total pull.

· Two sided safety cam, converts ANY lower to an Ambi.

· Machined from heat treated plate tool steel, for superior metal grain structure.

· Housing CNC machined in aluminum and Mil-Spec hardcoat anodized.

· Ultra hard / low friction NiB surface coating on sears allows lube free operation in dirty / tactical environments.

· Polished and honed sear surfaces for butter-smooth pull.

· Drop in trigger pack is fully assembled.

· Replaces four 922R components with US made parts: Trigger Housing, Trigger, Hammer, Sear.

COMPATIBLE WITH ALL HK 91/93/94 or G3, or clones.

Here is an initial video review done by the HK shooting team: https://www.youtube.com/watch?v=HnD98qxp2ng&t=161s


Drop-in, no modifications needed.  Note: trigger does NOT include an ejector lever, as these are caliber specific

In order to ship to Canada, purchaser needs to select the option for exportation to Canada.  By selecting this option, purchaser affirms that he/she is a Canadian citizen, and agrees that the trigger is for end-use in Canada and may not be re-exported.

MP5 Instructions & Warranty


Additional information

Lower Frame Type

Selector Hole is 7/16" (SEF), Selector Hole is 9/16" (AMBI)


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