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Review
Price is fantastic. Quality awesome. Service is the best. I think it was Chris in the video instructions. Chris, YES, YES, YES the trigger was gritty as sandpaper out of the box: FN 509 EDGE LS. Hard to believe anyone can make a worse factory trigger than Glock. While mine was a bit different than the standard 509, your video was superb. I was able to do my first spring replacement with only the aid of my son :-). Thank you. It made a world of difference. I felt so confident afterward, I went ahead and dropped a new trigger in. Went from a "leave it home" to"never leave without it. "
I've fallen in love all over again with my 509T. I've never fallen out of love with it, the springs just brought my love to new heights. It drastically changed the trigger pull making it lighter, while totally eliminating the grit most 509Ts were experiencing. My trigger manipulations are way better both with primary and support hand. It's definitely a must have, especially for the price. I fully enjoyed the install process, along with polishing. I just placed my order for the striker...can't wait.
FN is one of those companies that is always on the edge of destroying its competition and obliterating Glock ha! BUT! they always seem to just slightly miss the mark. The FN 509 has a super heavy trigger, but that's on purpose because certain law enforcement agencies tend to not train very well, and cops end up shooting them selves. IE Glock New York trigger. The stock FN trigger is not bad at all just heavy and takes practice. The M Carbo spring trigger kit takes your FN509 to the next level! The Instillation video they provide makes it super easy to install. Thank you M. Carbo
Just finished installing the FN 509 Trigger Spring Kit on my 509. Love the installation video - it made the entire process logical and do-able. The results are absolutely wonderful! M*CARBO is the go-to source for my firearm improvements.
This creates a great improvement in the trigger pull! Based on prior experience with light strikes using a different brand, I won’t even try the striker spring, however, I would estimate a 1-1.5lb trigger reduction using the other components. This is perfect IMO. Also, the safety takedown isn’t much different, but keep an eye on the tiny ball in the detent.
Installing the parts was a breeze, especially with the provided videos. The trigger pull was almost cut in half with the new parts and grittiness of the take up is all but gone now.
If MCARBO makes a spring kit for a gun I own, then their spring kit goes into that gun. Love these guys. You can't beat their "how to" videos either. Step by step, easy to follow. 5 Stars!
The installation went just like the video showed, some parts a bit more difficult for fat fingered people than others. Unfortunately, I did not notice any reduction in trigger pull on my Wheeler Scale. It was still showing 8# but, it is what it is. The firearm is still new so maybe after the next 200-300 rounds?
I've had light primer strikes since I've put this trigger spring kit in. Mentioned it in a FN 509 group and an Apex guy told me to "take that junk out and put the original springs back in and I won't have that issue anymore" since their strikers won't fix the light primer strike issue he said. At first I thought he was just being biased but after he said to search the group for the same issue I can across a bunch of other owners who had the exact same problem and fixed it by taking it out and putting the factory springs back in. I'll be putting the original springs back in as well.
Great video made the install easy. Unfortunately, did not see much of a difference. Also having jamming issues, even using different ammo. Will most likely re-install the original springs.
This kit is very easy to install. The hardest part was driving out the roll pin. I don’t have a trigger pull scale, but it feels as though the weight of the pull has been cut in half. The install video was very informative and helpful. This is a must have for the 509!
I purchased a FN 509 compact MRD with a Vortex Venom red dot on it. It is in the FDE and I really like the way it looks and works. The only part of this pistol that I was unhappy with is how heavy the trigger is from the factory. Mine tested out to 7.5 to 8 lbs. and that is to much. I also had a gritty take up which I didn't like. I read on the internet about some possible solutions and I tried many of them but nothing seemed to work. My other pistols all have after market trigger kits and they are all around 4 to 5 pounds. I found M Carbo on the internet and read all the reviews and decided to give it a try. The spring kit arrived quickly and I watched the video a couple of times before it tried it. It's a great video and I couldn't have done it without the guidance. I was able to do it on the first attempt. I did the slide first since it was the easiest and I had polished the striker so I knew how that worked. After replacing the springs in the slide my trigger pull dropped from 7.5 to 8 lbs to 6 lbs. and I was pretty happy with that. The next day I decided to do the frame springs. It went well and when I was finished the trigger pull went down to 4.5 to 5 lbs. I am not sure why but after a number of dry fires the gritty take up is now gone as well. I actually like the stock trigger so I was glad that I didn't have to replace it. The pull is right where I was hoping it would be and now the only problem I had with this gun is fixed. Thank you for the great spring kit. I also found a great concealed holster from Black Arch in Logan, Utah. Now I can carry concealed and the pistol works just the way I wanted it to. Thanks again I am very happy with the results. Problem solved.
I've dropped in the new springs and had a successful range class outing. My shot groups tightened up and time to acquire target on followup shots....since the trigger pull is is lighter, one may not pull off the target with the harder trigger squeeze. The video is well done and helps one have the confidence to do a self-install. One needs nimble fingers and good eyesight to reassemble the sear assembly. One difference with my stock spring between the two pins is the loops are the same size and snug, so I had to position the spring into place from the rear and not obstruct the loop with the needle nose pliers. I also found the greasing tip to hold spring/pin in place useful, as well as greasing the trigger against the frame. I've also had a friend shoot the fn509 with the new springs and also noticed a positive improvement for a cleaner break while holding on-target. Anyone pulling shots left or right with the factory kits should insert this kit.
So much lighter on the pull
Tried many FN509's over the years and always walked away because of the dreadful triggers. When I saw the trigger and striker had been redesigned for the LAPD trials, I took a leap of faith and ordered the FN509 MRD LE package and the MCARBO spring kit. Surprise! The trigger in the new gun was not bad! The initial take up was not bad and the break was nice with a crisp but not crazy heavy wall. I only installed the MCARBO striker safety block spring, which made the trigger perfect for me, lighter take up with no grit. I can't speak for the rest of the spring kit because I didn't need it, but it was worth the price to make my great gun absolutely perfect.
Quick and easy, and makes a HUGE difference! Cant wait to hot the range tomorrow