FN 509 Trigger Spring Kit

MY FN 509 HAD AN AVERAGE TRIGGER PULL WEIGHT OF 6LBS 2OZ AND WAS "SCRATCHY". AN M*CARBO TRIGGER SPRING KIT GREATLY IMPROVED THINGS, RESULTING IN A 3LB 13.2OZ TRIGGER PULL, A CRISP BREAK AND SMOOTHER PULL. INSTALLATION WAS NOT DIFFICULT. I WATCHED M*CARBO'S HOW-TO VIDEO (AVAILABLE ON THEIR WEB SITE) TWICE TO FAMILARIZE MYSELF WITH THE PROCESS, THEN WITH THE VIDEO RUNNING AS A GUIDE, I INSTALLED THE KIT. IT DOES REQUIRE PATIENCE AS SOME OF THE PARTS ARE SMALL. FOR ME, IT WAS DEFINITLY WORTH THE EFFORT. FROM AN OLD VIETNAM VET, THANKS M*CARBO FOR YOUR SUPPORT AND YOUR SERVICE.

Love the kit . Installed easily except for some fidgeting with the sear spring with a noticeable reduction in trigger pull.
One small problem for me in this time of ammo shortages.
I've got some Wolf steel cased 9mm that I've been using and my last time out after installing the kit I had two light primer strikes in the first 5 rounds. I immediately switched to some old Federal ammo I brought along (just in case) and had no other issues.
Point is in this time of shoot what you can find be aware that some type ammo with harder primers may not function with the reduced weight striker spring and I would be cautious if using the lighter spring in a self defense gun unless you seriously test it with your carry ammo.
I do like the results but will only use it as a range gun with the lightened spring.

I wasn’t super impressed with my FN509 trigger out the box even after 1k rounds. Found this spring set and gave it a try with an apex trigger. You can tell these aren’t just some springs in a pack, they really did there homework to get this set up to work right. All I can say is wow! This made a world of difference in the gun and would recommend anyone with this pistol to give it a try the video also makes it fool proof if you’re nervous. Thanks fellas,for setting me up with a great gun!!

Great kit!! Easy no Bull shit install! Glad to buy products from a 10 group buddy

Of all the guns I own, not a single one gave me buyer's remorse like the FN 509T. I bought it for its looks what it offered as a package (I mean, FN threw the kitchen sink on this firearm). But that trigger pull was so heavy right out of the box, it affected my accuracy when at the range. I've put 750 rounds through it hoping that it would get lighter over time but it didn't. The only thing that's gotten better was that annoying gritty feeling, which thankfully started to fade a little, as the transition from wall-to-break became more defined.
I didn't want to go the Apex route just to fix this because #1: I am no gunsmith, #2: I heard about people cracking their frames trying to punch one of the pins out #3: throwing more money at this gun was a no-no for me.
So I figured there's got to be an alternative. Enters M CARBO Spring Kit.
$20 folks!!! TWENTY!!! That was all it took to fall in love again with my 509. If you ever shot a CZ P10, you know how amazing their triggers are. Now, shave between 0.3 to 0.5 oz off that CZ P10C trigger (which out of the box is measured at 4.5 lbs) and that's what you'll be getting with this spring kit. The Youtube tutorial was very helpful. I had my fair share of struggle with the sear spring, but a little patience and being ok with walking away from it all to reset did the trick lol. The trouble was worth it!
Shipping was very fast considering the times we're living in. I ordered it on a Saturday and got it at my doorstep by Tuesday, and you'll be updated on the status of your order as you'd expect from any serious business.

Great buying experience, great customer service, and exceeded expectations as far as the product is concerned!

Bravo!