HK USP Full Size Straight Trigger

(6 customer reviews)

$95.00

The HK® USP (Full Size) Straight Trigger is designed for rugged use and competition, delivering performance and quality that will outlast your pistol. The trigger offers a straight face for improved finger placement and feels more solid, as it is manufactured from steel compared to the OEM polymer version.

It is fully compatible with the Grayguns Short Reset System for the HK USP.

Please ensure you review the Fit Guide and order the correct trigger.

We have a straight trigger in black oxide or nickel for the HK USP Compact pistol variations.

Description

Designed by Keith Hosey, Grayguns’ director of gunsmithing, the HK USP Full Size Straight Trigger for full-size variations is a first-of-its-kind in the market.

This USP’s straight aftermarket trigger design allows for lower finger placement and may provide the feel of reduced pull weight. However, the trigger design does not reduce pull weight.

Made in the United States to high-quality standards, it guarantees the fit and finish Grayguns is known for. Precision machined from tool steel and heat-treated adequately for optimal wear resistance. Hand inspected and finished to ensure a quality trigger we can stand behind for life.

HK USP Full Size Straight Trigger Fit Guide

Important: This trigger is for the HK UPS Full-Size pistols. We also have a HK USP Compact Trigger.

This kit is fully compatible with the Grayguns Short Reset System for the HK USP. This kit is strongly suggested if you are looking for reduced over-travel, as the trigger along offers a minimal change to over-travel.

Fits the following HK USP Full Size Variations

  • USP45
  • USP9
  • USP40
  • USP Elite
  • USP Match
  • USP Expert
  • USP Tactical

Finish

Black Oxide – Our high-quality blued finish is our standard for this product.

Nickel

Additional information

Weight .0625 lbs
Dimensions 6 × 4 × 1 in

6 reviews for HK USP Full Size Straight Trigger

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1-6 of 6 reviews
  1. I prefer flat-faced triggers so I felt this was a must have from my new HK USP .45. I installed this trigger along with the Gray guns short reset system, with the exception of the included firing pin block spring. I preferred to keep that spring stock. I’m an armorer across several platforms so I found the install to be relatively easy (about 15 minutes). That being said, I think anyone with a modicum of mechanical ability and a set of punches can successfully handle the install. There are several youtube videos describing frame disassembly and assembly that I found extremely useful. Here’s a tip….either buy an HK Trigger Return Spring (TRS) pair of pliers or do what I did, made one with a dremel and pair of old needle nose ones I had lying around. Took about 5 minutes with a small sanding cylinder bit. This tool is invaluable and allowed me to reinsert my TRS in one quick shot. Love the feel of the new flat trigger and the short reset system reduced my gun’s reset about 20-30%. Exactly what I was looking for. Very pleased with the parts and great service from Gray Guns!

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  2. This metal trigger is so much better than the standard plastic one. No more mush!

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  3. Installed the new trigger with the GG short reset system. Highly suggest if you like the look and feel of a flat face trigger. Breaks at 90 degrees to the slide/barrel. High quality material. Feels great. Looks great.

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  4. Received my trigger for my full size USP45 and SRT kit. It sure made a big difference and love it. I also have Grayguns trigger on my two P220’s great products

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  5. This is, IMO, the single best thing that you can do to improve your USP trigger. Lighter hammer spring, firing pin block spring, they all work but it’s very incremental. This is dramatic! With a light fpbs and medium trs, I’m getting 3.5lbs in LEM. I was having some issues with this trigger, LEM, and SRT combo….and GG said send it in and we’ll fix it. But I hate sending things back so i took 30 seconds with a needle file and got the extra trigger travel i needed for the system to work and now its 100%. The break is clean, it’s a nice lighter weight, reset is short, (not sig P series SRT short, but come on… it doesn’t get any better than that system). This trigger seriously completes the full USP package and I could not be happier with it. Thank you GG

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  6. I’ve been a fan of these GG Straight Triggers since I installed them with the GG Short Reset in my P2000SK, P30L, P30SK. I saw that they were also available for the Compact USP. It took awhile until they were available for the Full size but it was worth the wait. I have a USP9T. Just to see how it would feel I first installed it with the Heavy TRS and then decided to go with the Light TRS. It shot great with both but I just prefer the Light TRS. The Straight Triggers aren’t for everyone but I really like the way they shoot. I have big hands. Since it sets a little forward someone with small hands might not like it on the Full Size USP. My daughter likes the Straight Triggers on my other HK guns but not so much on the Full Size USP.

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Disclaimer

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.