Need assistance? Call the experts: (727) 223-1816
OR
Sign In
Review
Just arrived this morning and I had watched the install video 3 times prior. 1/2 Hour and done! Make sure you have all of the tools and a little dab of good grease. Trigger is way lighter and breaks like you'd think it should in a quality firearm. 8.2 down to a average 4.3 and this pistol remains unfired aside from the factory. Buy It! If you are gonna carry this is the solution for you. Best 25 bucks I've spent in years! Thanks for making something simple, inexpensive and here un the USA! OOH RAH!
This spring kit was an absolute game changer! I highly recommend this kit. The install video and printable instructions are very detailed and easy to follow! My pistols plus optic is pushing 2000 and it has the worst trigger Iv ever felt in my life, seriously it upsets me and because of this it will probably be my last FN purchase. I thought about selling it but it’s probably the best flattest shooting striker fire pistol and best shooting compact pistol Iv ever shot so i tryed to just pour more money into a stupid expensive pistol to make it the way it should have come from factory at this price. This spring kit changed every aspect of my trigger pull. I swear on everything this cheap little upgrade ALONE lightened the pull took all of the gritty dirty feeling take up out put a much more defined wall in the pull and a nice break on it. I’m blown away! And who knows maybe the break feels better because the take up doesn’t feel gritty as hell anymore and it’s lighter to make it break I don’t know. All I know is these springs alone have gone above and beyond my expectations 100%. I had polished my sear prior but only what I could reach with the assembly still in the frame, while I had it out I polished every piece that I could as well. Anyways 10/10 +10 recomended, by the way bad A packaging!
The OEM 509 trigger was kind of mushy and especially on the reset. I was not happy when shooting this handgun. I put this trigger spring package in and what a difference!! Trigger pull was crisp and the reset was way better. The video is thorough and explained nicely. It makes the install extremely easy and done in less than an hour. Plus it was nice to do some deep cleaning with the gun apart and with the video paused.
Very easy to install and made all the difference in the world for the feel and pull of the trigger.
Super easy install brought my trigger pull down to 4 pound on the dot amazing!
Just installed it on my 509T and it has a smooth, clean takeup with a crisp break. I paired it with an Apex flat trigger and it feels totally amazing. Will be ordering again once I receive my 509 midsize MRD. Great product made here in the USA. Thank you! C. Anderson Port Richey, Florida
Ordered and installed on my FN 509 tactical. Shipping was incredibly fast (especially for the times we’re living in), product arrived undamaged and the installation video made the process a breeze. Trigger pull reduction is astounding and I haven’t had a single failure to fire even running cheap steel cased 9mm. The bottom line is that this is a must have upgrade for any 509 series pistol. Thanks for the amazing product and support that y’all offer!
Amazing kit, makes the trigger in my fn 509 tactical feel amazing! Very light and crisp trigger pull. Best $20 I've spent on a gun! Put 2 boxes of ammo threw it and shoots perfectly. I'm much more accurate with it after installing the springs! The install video was super helpful! Also mcarbo is an awesome company, they shipped super fast and kept me updated threw the whole process! Hope I have a reason to business with them again in the future!
purchased this for my 509 mid size because i was not happy with the factory trigger feel. this kit was super easy to install and the video instructions were very clear. this made a huge improvement not only to the pull weight but also the overall feel of the trigger. i am a big fan.
Installation was a breeze with the videos they have. Put these on an FNS 9 and made a major difference in the pull. Will order another set for my FNS40L as a few of the springs overlap. Also getting for my AR, AK and Rossi 22lr.
The video that these guys put up to help is as good as it could possibly be. I have shaky hands and minimum gun smith skills but with some patience and listening closely to the tips the installer gives in the video, I was able to get this job done. I don't have a trigger pull weight but there is a major difference. I also took the time to follow another video on how to get some grit out of the trigger and did that at the same time. My trigger still has some annoying grit but the pull is amazing and crisp. It's crazy what a difference this kit made.
I can not stress enough how absolutely necessary it is that, if you own an FN 509, you buy this spring kit. This spring replacement (along with with some gun grease in certain places) makes the trigger pull smoother than a baby's bottom, and twice as light as before (half as heavy). This trigger spring kit is an absolute must. Chances are you came across this spring kit as a solution to the heavy/gritty stock trigger pull, and good lord almighty, this is the fix. Installation was fairly easy. Follow one of the few videos to a tee and you will be golden. From my personal experience, just be careful with the alignment of the retainer with the sear block when re-assembling the gun. If it's not perfectly aligned, the pin will not go back in so you will have to shimmy it around, pull it out, and realign it. Other than that, very easy installation and FANTASTIC results.
First of all do not loose any spring or parts while assassinating the trigger' sear group. 1) Installation was hairy but doable 2) The Video instructions are excellent 3) Repeat do not loose parts, lay down a big white sheet/towel on your bench/work area. 4) Just follow the video instructions Trigger pull dropped to 4lb average of 10 pulls Next,t I am installing another set in my buddy F509
At best my 509T trigger wash subpar out of the box. I don’t have time to put a few thousand rounds down range and hope it gets better. My older 509 was a descent trigger. After the first 200 rounds I was convinced I needed a trigger upgrade. Had luck with Mcarbo on my other guns so for $20 had to give it a shot. Absolutely night and day difference. Ran 500 rounds today. Zero issues gun is better than the shooter. Only negative not on them on me is my fat fingers trying to hold the little springs on assembly.
Installation was really easy with the videos you guys post. My trigger went from 7lbs to 3.25 on my wheeler scale. It made all the difference in the world for my 509.
For 20$ you get far more value than you pay for. I installed this kit and reduced trigger pull from 7.5 lbs to 4.5! I also later Installed a apex trigger ($160) and apex striker ($60) and it only reduced it by another .5 lbs. save your money, buy the M*Carbo spring kit instead! I had to go back to the original striker spring as I was getting light primer strikes. HOWEVER, I reload and was running small rifle magnum primers so I’m going to chock that one up to the primers rather than the M*Carbo spring.