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Review
I checked the trigger on my gun prior to the installation with a Lyman Digital Trigger Pull Scale. The 3 pull average was 5 lbs. 6.4 oz. After the install the trigger pull is much smoother and breaks crystal at 2 lbs. 3.5 oz. on a 3 pull average. Shoots great but the trigger is a little light for a carry weapon.
Absolutely great company. Very fast shipping, Bet quick to respond to emails. The video of how to install was spot on. Part's fit very nicely. Will definitely order from then again.
This kit wasn’t too difficult to install and is well worth the money. I’ve had zero issues so far.
This spring kit was easy to install and changed the performance of the trigger dynamically! The video was informative and detail rich. From start to finish, the spring replacement took , at most ,30 minutes. No malfunctions, just increased performance. A very solid and inexpensive upgrade to this handgun. I would recommend MCarbo products to anyone wishing to make their firearms run better
I finally got to the range... The spring kit made a noticeable difference in the trigger. I felt I could stay on target better with the kit installed. I was going to do the apextrigger but I don't think it's necessary now... The install videos videos are awesome.
Fantastic customer service and super fast shipping easy installation following the video Thanks again and supporting LE agencies
Good quality, big difference in trigger pull after installation and great install video.
I ordered the FN509 spring kit and it made a big difference on the trigger for the FN 509. I also watch the video on installing the spring kit and the video was great and I had no problems with the installation. M*CARBO great company to deal with and I will recommend them to my friends.
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.
Amazing product, lighten my. Trigger which 7.4 lbs stock to 4 lbs trigger pull. If anyone can leave me answer please do, does this spring kit work with apex fn509 after market trigger ?
Installed the MCARBO trigger spring kit in my 509C after doing some research originally the trigger broke at 6 to 7 lbs after installing the kit the pull was reduced to a consistent 4.5 lbs and the break is crisp and the reset feels and sounds more tactile. Very satisfied with the help and always here to support my fellow Veterans
Your videos are amazing, had a challenge putting the seer spring back but figured it out at the end, a little tricky but very satisfying and gave me a lot of confidence. The over-all install was not difficult just challenging putting the small parts in place. There are no better install videos than yours, bar-none! Can’t wait for the Taurus challenge! Thank you very much.
Mcarbo comes through again. Easy installation and with minor polishing inside the striker spring tunnel my FNS 9c trigger went from 7.5 to 5 lbs. Nearly all " grittiness" is gone. I'm sure with further polishing it will improve more.
what a difference your choice just add upper spring I went from 7.1 to 5 lbs this also seemed to smooth out the trigger pull ????? tried the frame parts works well (BUT) I like a carry gun with more than a 3.5 lb trigger no external safety issue . I went back to the factory sear spring for my application good instructions,