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
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.
It took me about 10 minutes to complete the replacement. Wheeler professional digital trigger pull gauage DA 4.3-5.0 / SA 1.3 - 2.0 The long double action is smooth, and feels like similar to the original trigger single action. The single action takeup and reset are incredible. I highly recommend this upgrade to anyone who owns a PX4.
watched the video made it very easy to install. really smoothed out the double action and reduced the weight on the single action. but where it really shines is on the trigger reset.
I have two PX4'S. I installed the trigger jobs about 3 weeks apart. This gave me a great opportunity to truly compare the difference in trigger feel and reset. WOW!!! It is such a huge difference. Well worth the money. I don't pull up and to the right anymore with my follow-up shots. If you're on the fence, and can afford it, I say, "Pull the trigger and buy it!"
Very happy with the results. DA pull is much smoother, great for a carry gun. Trigger is a little lighter but it's the lack of grit and chop that is the big payoff. Read the comments below the install video for some pointers that will eliminate 99% of the install frustration.
I recently installed the kit with the optimized trigger bar,and 11# trigger spring. To say the least the reset is crisp and the DA/SA is much lighter cant tell the number. I carry mine off duty and love the PX-4 unfortunately has never gained popularity guess folks like them striker fired pistols. Iam like Ernest cant beat a DA/SA pistol cant get safer.. In closing the factory trigger is good but trigger job in bag is better. Well worth the $214. I to have put many rounds down range with it and this is a vast improvement. The LTT folks are great and will answer all your questions. Stay safe and keep practicing. Regards M Gander Paris, TN
i was pleased with the trigger pull out of the box. but upgrading the trigger job drastically improved my single action. it's magic.
I have these in all my 92’s and knew this would be a must for my new PX4. Everything comes assembled and lubed, so you can drop this in and be shooting in minutes. There is a shortcut to not having to remove the back strap, so make sure to find the right video!
I LOVE the Beretta PX4. It is my everyday carry and even in its stock configuration it is an outstanding firearm. However, this trigger makes this thing feel like my competition gun. The installation is easy with the video tutorial and the results are absolutely fantastic. I can not recommend this product or any Langdon Tactical product enough. Great company, great people, great products. 10/10.
Just installed the Trigger Job in a Bag. It took about 5 minutes to do the install, glad I didn't pay someone to do the job. All I can say is wow. I don't have a trigger scale so I can't say what the pull changed. It is however much smoother and lighter. Can't wait to get to the range.
It took me about 10 minutes to complete the replacement. Wheeler professional digital trigger pull gauage DA 4.3-5.0 / SA 1.3 - 2.0 The long double action is smooth, and feels like similar to the original trigger single action. The single action takeup and reset are incredible. I highly recommend this upgrade to anyone who owns a PX4.
watched the video made it very easy to install. really smoothed out the double action and reduced the weight on the single action. but where it really shines is on the trigger reset.
I have two PX4'S. I installed the trigger jobs about 3 weeks apart. This gave me a great opportunity to truly compare the difference in trigger feel and reset. WOW!!! It is such a huge difference. Well worth the money. I don't pull up and to the right anymore with my follow-up shots. If you're on the fence, and can afford it, I say, "Pull the trigger and buy it!"
Very happy with the results. DA pull is much smoother, great for a carry gun. Trigger is a little lighter but it's the lack of grit and chop that is the big payoff. Read the comments below the install video for some pointers that will eliminate 99% of the install frustration.
I recently installed the kit with the optimized trigger bar,and 11# trigger spring. To say the least the reset is crisp and the DA/SA is much lighter cant tell the number. I carry mine off duty and love the PX-4 unfortunately has never gained popularity guess folks like them striker fired pistols. Iam like Ernest cant beat a DA/SA pistol cant get safer.. In closing the factory trigger is good but trigger job in bag is better. Well worth the $214. I to have put many rounds down range with it and this is a vast improvement. The LTT folks are great and will answer all your questions. Stay safe and keep practicing. Regards M Gander Paris, TN
i was pleased with the trigger pull out of the box. but upgrading the trigger job drastically improved my single action. it's magic.
I have these in all my 92’s and knew this would be a must for my new PX4. Everything comes assembled and lubed, so you can drop this in and be shooting in minutes. There is a shortcut to not having to remove the back strap, so make sure to find the right video!
I LOVE the Beretta PX4. It is my everyday carry and even in its stock configuration it is an outstanding firearm. However, this trigger makes this thing feel like my competition gun. The installation is easy with the video tutorial and the results are absolutely fantastic. I can not recommend this product or any Langdon Tactical product enough. Great company, great people, great products. 10/10.
Just installed the Trigger Job in a Bag. It took about 5 minutes to do the install, glad I didn't pay someone to do the job. All I can say is wow. I don't have a trigger scale so I can't say what the pull changed. It is however much smoother and lighter. Can't wait to get to the range.
