Competition Spring Kit Part 1

Competition Spring Kit Part 1

Available at – search item #T0863.
This is the ultimate competition shooter spring kit. This kit will give your trigger a smoother, lighter, more crisp feel to your trigger pull. Fits all Glock models, fits all Glock generations.

ZEV Tech extra heavy trigger spring (trigger spring helps you pull the trigger, heavier is better)
ZEV Tech reduced power firing pin safety spring
ZEV Tech reduced power firing pin spring

Extra Heavy Trigger Spring:
28% More power than stock, for a much lighter pull and reliable reset
Manufactured from aerospace grade, high-stress rated, cryo stainless steel
Computer tested rate elongation
Closed loop, no-fail connection hooks
99.99% repetition load feel: the same trigger pull every time
Exact OAL variance: -+- 0.002″
Gunsmith/armorer not required for installation


  1. Chad Bauer on November 14, 2021 at 9:59 pm

    I want to reduce the trigger pull on my Glock 42. After watching this and other videos I think I want to use the springs. I want to get the stock 5.5 pound trigger pull down to a 4.5 or 4 pound trigger pull. Will I have to install all three springs or can I get away with only changing out the striker spring and plunger spring to get the desired 4.5 to 4 pound pull? Or can I just change out the plunger spring? I don’t want a 3.5 trigger pull. Just a little less than the stock trigger pull

  2. SUB_0 on November 14, 2021 at 10:01 pm

    Hey iv lost my extractor spring, could i make a similar one and use that.

  3. Hugo on November 14, 2021 at 10:02 pm

    7:57…. HEARD THAT!!! hahaha…

  4. Michael on November 14, 2021 at 10:02 pm

    I am experiencing my glock 19 gen 3 will sometimes fire again on reset.. i have the spring kit and the vr4 rqce connector installed. I love the feel of the trigger it is right at 3lbs. Now but firing on reset makes me very nervous. Again it is only sometimes. I meed help !!!!

  5. Alessandro Bianco on November 14, 2021 at 10:04 pm

    what is the point on changing the scoring? won’t the recoil be stronger if the spring is lighter?

  6. Aiden Briguglio on November 14, 2021 at 10:04 pm

    Great video! Thanks, it was a huge help.

  7. Town Life on November 14, 2021 at 10:06 pm

    My spring crack . Do they do background check to order a spring?

  8. Mark Gaidola on November 14, 2021 at 10:08 pm

    The rod is stuck inside that channel won’t come out any suggestions

  9. Ben Smith on November 14, 2021 at 10:09 pm

    I just wanted to state that this video was a huge help to me.  I was having a lot of trouble and a bunch of other videos just weren’t cutting it.  This saved me after an hour of frustration.  Thanks!

  10. craftsman89 d on November 14, 2021 at 10:11 pm

    doesn’t this void the warrenty??

  11. niemdan on November 14, 2021 at 10:12 pm


  12. WeAreTwoDoorsDown on November 14, 2021 at 10:13 pm

    You need air conditioning…

  13. Eric Bee's One on November 14, 2021 at 10:15 pm

    Watch video: child or pet could follow your skills! Good – good video, keeps parts/ springs of airport radar as they USED to fly! ( Alla the master of flying springs ~. 1911!) THANKS 😊

  14. Michael Setliff on November 14, 2021 at 10:16 pm

    Thanks so much for this 😢. Was getting ready to upgrade the plunger spring and would have taken who knows how long taking the slide apart. Probably would have scratch the plate as well.

  15. Douglas Gross on November 14, 2021 at 10:19 pm

    About the 4 pound striker spring –
    It’s the reliability of this weaker spring well established? I have read the warning about 10mm and 45 ACP; don’t use this for self defense. I wonder if that is just a "CYA" thing, etc.

  16. Tactical Toolbox on November 14, 2021 at 10:20 pm

    Awesome Review Brother….I just posted my review of the Zev Tech Fulcrum Trigger at But It’s very nice to see a comparison.

  17. Chase Ryan on November 14, 2021 at 10:21 pm

    Dented slide? Its hardened solid steel.

  18. Chad Beall on November 14, 2021 at 10:22 pm

    Your videos are some of the most informative videos that I’ve ever watched. Thank you!

  19. Oddmund Dale on November 14, 2021 at 10:22 pm

    Reduced power striker spring give longer lock time. Dont fuck around its fine from factory.

  20. joe smoe on November 14, 2021 at 10:22 pm

    like your videos but why are the glock boards so pale to you? was going to buy a trigger and a few parts, 60 days for shipping? i dont think so, GET THE F OUT OF COMMIEFORNIA newsome is a hater and dragging you guys down

  21. Tony Morse on November 14, 2021 at 10:23 pm

    I love this channel

  22. ftwopointeight on November 14, 2021 at 10:29 pm

    I like your safety guidelines of no ammunition or loaded clips in the immediate area of breakdown… Common sense.

  23. Anguinus Vir on November 14, 2021 at 10:29 pm

    Lenny what would your opinion be on a reduced power safety plunger spring, a NY1 spring, 3.5 connector, a 28 newton stronger firing pin spring. What would the result be?

  24. youmasajp on November 14, 2021 at 10:31 pm

    There are about 1,000,001.47 videos on this subject. Yours sir are simply the best. Thank you for showing not only how to do it, but the tricks how to do it easy.

  25. Casey Kelso on November 14, 2021 at 10:40 pm

    great vids Len . would be nice if you could send us some feedback on these questions everyone is asking in all your vids ….thanks bro

  26. WE0H on November 14, 2021 at 10:45 pm

    That was an EZ install. Thank you 🙂

  27. Davidjh1 on November 14, 2021 at 10:50 pm

    Excellent video. Step by step. Thanks for taking the time to explain the functions as well. No problems at all. Best one I found. Sooo helpful!!

  28. Chris Charles on November 14, 2021 at 10:51 pm

    DO NOT use the lighter striker spring if your pistol is going to be used for self defense. Especially if you have a 45 or 10mm Glock. With that said Ive been experimenting with my trigger on my new Glock 41. I found that using the heavy trigger assist spring, reduced power plunger and a 3.5 connector on top of polishing all your contact points will drastically improve the feel of your Glock trigger. I was able to shoot much tighter groups after these mods. 
     Great videos Lenny, They have helped myself and other Glock fans when working on our pistols. Ill be sure to support Glockstore whenever I need parts and accessories. 

  29. That guy on November 14, 2021 at 10:53 pm

    on your sight you state it will reduce "pull weight by up to 1 full pound". so if you do this kit with the 3.5 lb connector will it drop it down to about 2.5 lb trigger pull?

  30. md rajib on November 14, 2021 at 10:55 pm

    Hello Sir, m from India, my Glock 19 pistol miss fired maximum rounds of Indian manufactured ammunitions, please suggest me what should I do to fire it?