PX4 Chrome Silicon Hammer Spring

(20 reviews) Write a Review

The Ultimate Reduced Power Hammer Spring for the Beretta PX4 and Beretta 92 Series pistols. This 11lb hammer spring will significantly reduce the DA pull weight and has been hand polished to better allow the spring to smoothly rotate in the hammer spring cup.

FAQ's about the 10# Hammer Spring:

Q: What will my pull-weights be with the 10# Hammer Spring and LTT Trigger Work?
A: Double-Action: 6 to 6.5lbs. (It will likely take 3-4 lbs off the DA over the factory full power spring)
Single-Action: .5lb REDUCTION depending on what trigger work has/has not been done. This will vary based on your firearm and what you have done to it.

Q: Is the 10# Hammer Spring reliable to carry with?
A: So far it has been 100% with everything we have tried with this spring, included some NATO spec ammo. It is recommended that you stick with US manufactured ammo with this spring, especially for carry or duty use.

**If purchasing for the 92, we recommend using the 11# hammer spring for competition only. We do not recommend the 10# hammer spring for the 92/M9/96 series pistols at all**


DISCLAIMER: We recommend that this product as well as all other firearms parts & 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 manufacturers warranty. We strongly recommend that the safety and operation of your modified handgun be thoroughly checked by an accredited gunsmith prior to use.

20 Reviews Hide Reviews Show Reviews

  • 5
    PX4 - lighter is better!

    Posted by Jonathan H on Dec 20th 2021

    I have the lightest recoil and hammer springs in all of my beretta firearms. I’ve never had one issue and have instead enjoyed the smoothest and softest triggers pulls imaginable!

  • 5
    Hammer spring

    Posted by Bruce on Jan 29th 2021

    Great product. Reduced da pull to a nice but safe pull. Very pleased

  • 5
    Hammer spring

    Posted by Sixpoint8 on Jan 18th 2021

    Steady consistant pull. Dramaticaly improve the double action pull. Easier to stay on target. Doesnt stiffen up at the end like the fsctory wieght spring.

  • 5
    Better than the Beretta "D" spring

    Posted by Roy on Dec 11th 2020

    I've had the Beretta "D" hammer spring installed in my 9mm Px4 compact for over 3 years. The double-action trigger pull stacked near the break point requiring more force to finally break the shot. The LTT 11-pound hammer spring has eliminated the stacking. Now the shot just breaks without requiring increasing force on the trigger as you approach the break point. Double-action groups with the 11-pound hammer spring are better compared to the "D" spring. Single action pull was slightly reduced and I experienced a slight improvement in groups when firing single-action. Trigger pull weights are still heavy enough that unintentional or premature shots are not a concern for conceal carry. Today I fired 130 rounds including Speer Gold Dot, Federal American Eagle, Federal HST and Remington brown box training ammo. All rounds fired reliably. I highly recommend this spring to all Beretta Px4 owners.

  • 5

    Posted by Carlos Toro on Oct 22nd 2020

    This is a great product, very easy instalation and it feel ecxellent. Thanks

  • 5

    Posted by Thomas Lee on Oct 8th 2020

    Shipping was fast and early, spring went in easily, and helped reduce the trigger pull. Now with all the parts I got from LANGDON TACTICAL I have a BUTTERY SMOOTH TRIGGER ON MY BERETTA PX4 STORM SUBCOMPACT!!! I WILL BE ORDERING MORE PARTS FOR MY OTHER BERETTA PX4 STORMS!!!!

  • 5
    11# Hammer Spring for 92 Elite LTT

    Posted by Bob on Oct 8th 2020

    I recently purchased the LTT 92 Elite Compact with the trigger job and while the 13# hammer spring was very nice my damaged and weak arthritic fingers needed an even lighter DA trigger pull. The DA pull went from around 6lbs 3oz to around 5.4oz measured with a Lyman Trigger Gauge.. The SA pull went from around 3lbs 4oz to around 2lbs 14oz. I put 180 rounds with Federal primers through the gun and it ran flawlessly. I also put 180 rounds with CCI primers through it and it also ran flawlessly even though Ernest stated there may be some light primer strikes with harder primers using the 11# hammer spring. I plan on carrying this pistol after I've run a 1000 rounds with no light primer strikes. So far so good.

  • 5
    Nothing better

    Posted by Andrew S on Aug 17th 2020

    I installed this spring on my LTT Compact Carry and it made a great gun better. So when I got a nearly new full size PX4 for a steal of a price, i wonder how much of a difference adding this spring and the LTT trigger bar would make to a stock gun. It's not a smooth as my compact carry but it is extremely close. I can not recommend this spring enough for the px4

  • 5
    hammer spring

    Posted by Albert Green on Jul 31st 2020

    ordered the #10 hammer spring and it was great! again, lowered the force to pull on the trigger by about 1 pound more, just feels easy or let me say easier than before. for the price of the hammer spring which isn't much, its well worth the effort of putting it in!! thanks!