LTT TRIGGER JOB IN A BAG BERETTA PX4
Great upgrade to my Beretta PX4 Storm GSD.
After several thousand trigger jobs on Beretta 92s and PX4s, LTT has the process down to a formula. We now offer what we call Trigger Job in a Bag. Purchase this kit to receive all of the important parts involved in a trigger job that are pre-polished and stoned to give you close to the same trigger job you would get if you sent it to us.
In August 2025, LTT switched over to a newly designed optimized performance hammer to optimize total trigger job performance in every way with improved sear notch geometry, reduced pre-travel distance, faster lock time, and better firing pin indent with lighter hammer springs. We believe this kit set-up gives you the best Trigger Job Performance and stand behind this hammer design, which has been over a year in development and manufacturing.
The PX4 Trigger Job in a bag works in the PX4 Full-Size and Compact 9mm models and .40 S&W.
The PX4 TJIB had a price increase in November 2025 due to the price of steel and imports.
PX4 Trigger Job in a bag includes
- We are now offering the PX4 Trigger Job in a bag with the Beretta Competition Trigger Group again and not the factory trigger group.
- Chrome Silicon hammer spring available in 10lb or 11lb
- Black DLC Optimized Performance Trigger Bar
- Hammer 2025 LTT Optimized Performance Hammer or the 2025 LTT Optimized Performance Spurless Hammer
Lead Time 3 to 5 business days
PLEASE NOTE This kit MAY require some fitting for proper install and function - please make sure to watch the install instructions video, see below for the link. We recommend that this kit be installed by a competent gunsmith. No returns will be accepted on opened kits.
Check out our YouTube page for install instructions
DISCLAIMER We recommend that this product as well as all other firearms parts and kits sold by Langdon Tactical be installed by a competent pistolsmith. No liability is expressed or implied for ANY damage or injury which may result from improper installation or use of this product. Installation of any firearm parts may limit or void the manufacturer's warranty. We strongly recommend that the safety and operation of your modified handgun be thoroughly checked by an accredited gunsmith prior to use.
Please reference our Terms and Conditions. Due to the complexities of complying with the Federal warranty law, Langdon Tactical Technology, Inc. does not offer a written warranty. We continue to stand behind our products and services, and to care for our customers, but we cannot make guarantees or warranties of any kind. This general statement of policies and disclaimers is effective January 1, 2016.
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PX4 Trigger-in-a-bag
Install was pretty easy but highly recommend LTTs own install video -plus- a subtle comment to be mindful of spring that needs to ride beneath trigger bar. Have yet to fire with live round but dry fire feels improved.
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A+
My only complaint is it took me nearly a year to get my hands on one. No complaints whatsoever with the product itself. Very easy install ant a game changer re: performance. I’m very pleased with my purchase.
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Good stuff
It's a high improvement from the stock trigger group
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Px4 Trigger Job in a Bag
Finally, the trigger I deserve in my Px4 Full Size. Worth every penny and the results were beyond expectations.
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Trigger job in a bag
10/10 recommend, easy install and great fit, with the trigger bad the reset is super short and crisp!
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PX4 trigger job in a bag
11 pound spring chosen. Double action lighter, the SA reset is MUCH shorter and effective (but you have to train to get used to it). All in all, definitely worth it. BTW I made a mistake in gun assembly, and the Langon tech responded right away and helped (not them).
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Great Product. Easy Install
Picked up a stock PX4 for cheap. Good trigger out of the box. This was easy to install (PX4s are intended to be easy to work on). DA feels about the same, but very smooth and a little lighter. SA is awesome. Trigger reset is tiny. Great buy. A must-have for your PX4.
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Awsome TRIGGER JOB IN A BAG - PX4!
This was simply an amazing upgrade! It improved an already great trigger to near perfect, removed most of the takeup and reduced the single/double action pulls by at least 25%. On top of that, following LTs video, it was by far the easiest trigger upgrade I have ever done. Thank you!
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Out of stock
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Reviews
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LTT TRIGGER JOB IN A BAG BERETTA PX4
Great upgrade to my Beretta PX4 Storm GSD.
-
PX4 Trigger-in-a-bag
Install was pretty easy but highly recommend LTTs own install video -plus- a subtle comment to be mindful of spring that needs to ride beneath trigger bar. Have yet to fire with live round but dry fire feels improved.
-
A+
My only complaint is it took me nearly a year to get my hands on one. No complaints whatsoever with the product itself. Very easy install ant a game changer re: performance. I’m very pleased with my purchase.
-
Good stuff
It's a high improvement from the stock trigger group
-
Px4 Trigger Job in a Bag
Finally, the trigger I deserve in my Px4 Full Size. Worth every penny and the results were beyond expectations.
-
Trigger job in a bag
10/10 recommend, easy install and great fit, with the trigger bad the reset is super short and crisp!
-
PX4 trigger job in a bag
11 pound spring chosen. Double action lighter, the SA reset is MUCH shorter and effective (but you have to train to get used to it). All in all, definitely worth it. BTW I made a mistake in gun assembly, and the Langon tech responded right away and helped (not them).
-
Great Product. Easy Install
Picked up a stock PX4 for cheap. Good trigger out of the box. This was easy to install (PX4s are intended to be easy to work on). DA feels about the same, but very smooth and a little lighter. SA is awesome. Trigger reset is tiny. Great buy. A must-have for your PX4.
-
Awsome TRIGGER JOB IN A BAG - PX4!
This was simply an amazing upgrade! It improved an already great trigger to near perfect, removed most of the takeup and reduced the single/double action pulls by at least 25%. On top of that, following LTs video, it was by far the easiest trigger upgrade I have ever done. Thank you!