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Review
Easy to install spring upgrade. I can't really say I feel much difference between the factory springs and these springs, but they do look as if they are finished better and are smoother than the factory set for sure. If you're going to install the trigger upgrade and do a polishing job on the sear and engagement surfaces you really need to upgrade the springs at the same time. The included spring installation tool, which is really just a short length of plastic dowel, is a lifesaver. Use it!
I purchased both the spring kit and the trigger kit together. Take time to do this because it takes a little time and effort. Also, be sure you have the tools which are recommended in the video. The final result is fantastic!
Installed this kit along with the trigger, they both work perfect together. I've run a couple hundred rounds through it. So far so everything works well.
Polished and install the Spring Kits, I only can reduce to 5# trigger pull. I think the Max-9 OEM firing pin is too heavy, I think the kit needs a lighter firing pin spring.
I installed with Mcarbo trigger and am very pleased. Polished a few items also and getting a 2lb 10oz trigger pull. Also very smooth. Very happy with results.
I ordered the complete custom kit, tools and all. Everything came 2 weeks ago but the spring kit, I’ve called back 3 times to only be assured it was being shipped out. Still have not recieved even a tracking number. If not here Monday I have no choice but ask for a refund and see if a competitor has an option. Not real enthusiastic about the customer service . They come off as extremely nice but fail to keep their word. I can’t as of now recommend this company at all.