HK USP & HK45 DA/SA Short Reset System Installation

Keith Hosey walks you through how to install a Grayguns short reset system in the Heckler and Koch USP Double Action/Single Action variant. We do have a different video posted for the LEM version.

Although this is an HK USP install, the process is similar for the HK45. If you have any questions, don't hesitate to get in touch with us.

Our HK USP and HK45 Short Reset System replicates our custom in-house short reset conversion with a drop-in kit for your pistol. These kits are cut from bar stock steel and provide an exacting fit for easy installation.

It shortens the reset travel distance by about one-third, reduces trigger over-travel, and reduces pull weight while maintaining all factory safety functions.

This kit is specific to the HK USP and HK45 models with or without a thumb safety, including DA/SA and LEM variations. Please take a look at our Fit Guide and trigger bar notes on the product page.

Product Page:
https://grayguns.com/product/hk-usp-hk45-short-reset-system/

Verified Customer Reviews:
https://grayguns.com/product/hk-usp-hk45-short-reset-system/#tab-reviews

Many parts sold by Grayguns - including but not limited to triggers, trigger kits, internal components and spring kits - are intended for installation by a qualified armorer or gunsmith who is familiar with the firearm.

Although kits fit with no issues in a great majority of pistols, Grayguns cannot guarantee perfect functionality in every instance.

Due to varying tolerances present in all mass-produced firearms, professional fitting by a qualified armorer who is familiar with the pistol's action may be required.

Grayguns offers installation services for all parts kits we offer. If you have any issues or questions about the installation process, STOP IMMEDIATELY and contact the Grayguns Customer Service Team.

Please direct any product questions to our Customer Service Team (https://grayguns.com/contact-us/) or call us at (888) 585-4729.