Product reviews: Grayguns HK USP, HK45 Short Reset System

Grayguns HK USP, HK45 Short Reset System

Grayguns HK USP, HK45 Short Reset System
5 stars
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Mark Matthews

Apr 18, 2019



The Short Reset System has been the single best upgrade to my USP. It removed all the slack from the reset and take-up in single-action mode, shortened the reset distance, and made the single-action trigger pull FAR better than the factory match trigger kit. I cannot recommend this highly enough!

It does not come with instructions, so understand in advance that the roll pin that comes in the kit is to replace the slightly-shorter roll pin in the sear (easily replaced in about 10 seconds with a hammer and roll-pin punch), and the spring is to replace the firing pin block spring in the slide (which lightens trigger pull by about 1lb.
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David Au

Sep 11, 2019



Well made product, but the firing pin safety spring did not fit my USP 45 (elite).
Trying to work with grayguns to get a correct replacement now.

The difference is subtle but noticeable. Not too hard to install once you figure it out. Roll pin replaces the one in the sear, and the big piece replaces the similar piece. Spring goes in the slide replacing the fp safety spring.. if it fit (it didn't, it's too small in diameter).
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