Springer Precision Magazine Extension (+4 Round Capacity)

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The Springer Precision Magazine Extension Kit adds 4 rounds of capacity to your PX4 (factory magazines) and Beretta 92 MecGar Magazines. 

  • The PX4 Kit can be added to your 15-round or 17-round magazine to give you 4 more rounds of capacity. 
  • The Beretta 92 Kit can be added to your MecGar 18-round magazine to give you 22 rounds or to your 20-round magazine to give you 22 round capacity. 

The kit includes the extension and the extra power spring. 



When installing the new spring and base plate in your magazine, do NOT use the factory mag catch plate.  

1. Disassemble magazine.
2. Remove old spring from follower.
3. Replace spring with NEW spring on factory follower. 
4. Compress Spring all the way into the magazine body. 
5. Slide the Springer Precision base plate into place and let spring release into magazine extension. 
6. Use small allen key to turn amen screw counter clockwise to lock extension in place (DO NOT OVERTIGHTEN)

9 Reviews Hide Reviews Show Reviews

  • 5
    +4 for sUre

    Posted by Rommel on Feb 27th 2020

    I can’t LOSE with 22! Mecgar 18 +4 you do the math. Jordan if you got one in the chamber. Easy to install! Replaces spring and baseplate with the same spring follower. Do NOT use the original baseplate as it fits with the new baseplate but you’ll be in a world of hurt like I was when I didn’t read the directions. FIXED it and did it right thankfully. The Base of the mag looks to match the slide. Nice contrast. Don’t buy 22” rims for your car, instead buy these.

  • 5
    Springer +4 Magazine extension

    Posted by Samuel U. on Nov 18th 2019

    Very good product. Take your 9mm PX4 Storm from a 15 round carry gun to a 19 round nightstand gun just by swapping magazines. Baseplate and spring are easy to install, and LTT ships them out very quick.

  • 5
    Springer Precision Magazine Extension

    Posted by Michael Carter on Sep 16th 2019

    High quality product that works flawlessly.

  • 5

    Posted by Jimmy on Apr 15th 2019

    The shipping was fast, the item was exactly what was described and it works.

  • 5
    Well machined magazine extension

    Posted by Unknown on Apr 9th 2019

    Fits perfectly and the weight feels excellent.

  • 5
    Springer +4 mag extension

    Posted by Thomas moore on Mar 25th 2019

    Very well built product, the extension baseplate and spring have not altered the reliability of my magazine one bit. An extra four rounds is nothing to turn your nose up to!

  • 4
    Good Addition

    Posted by Charles Noe on Nov 11th 2018

    I had purchased one of these previously and was so impressed with it that I decided to purchase a couple more.
    I received them and installed the extensions on two Px4 Compact magazines. When I went to the range to function check the modified magazines, one worked perfectly while the other failed after firing six rounds. The spring had wedged itself around the join between the magazine body and the Springer extension. I could not dislodge it with removing the base plate. The spring was trashed.
    Five stars to Langdon Tactical for their customer service. I emailed them and had a response from Aimee within an hour. She recommended contacting Springer Precision, which I did.
    Springer responded within 48 hours and they are sending a replacement spring.
    Overall a good product, but always function test before using for anything serious.

  • 5
    Quality Product

    Posted by Charles Noe on Oct 1st 2018

    I purchased this magazine extension at the same time I purchased the +3 kit in order to compare the two.
    The Springer Precision extension is made from aluminum versus polymer for the Beretta +3.
    Assembly of the Springer Precision extension was much more straightforward and easier to accomplish then the Beretta +3 extension.
    The Springer Precision is slightly longer than the Beretta +3, but you are also upping the capacity by one more round. Either will work well for a concealed carry back up magazine or a primary magazine on the nightstand.
    I believe the slight increase in weight with the anodized aluminum extension helps the magazine clear the magazine well just a tad bit faster than the polymer +3.
    Fit and function were perfect and I would certainly recommend this product to anyone seeking to increase the capacity of their Px4 magazine.
    I will definitely be acquiring more of these in the future.

  • 5
    Excellent Prodcut!

    Posted by Joe D. on Sep 21st 2018

    Very nice! Adds 4 rounds to the standard magazine. Easy to install, even includes the Allen wrench needed to install. I'm buying another!