i like the kit, it changes how the blaster feels in that it's much heavier and feels more rigid. my only gripes are that the metal priming kit doesnt come with the rest of the pusher, so you either have to use the stock pusher or buy this kit as well. also, i noticed a couple of things that other reviews have mentioned such as the plunger being slightly too small to seal in the air chamber, though a little tape can fix that fairly quickly. also, i painted my rail and the front rail extension was a pain to install, but that was my fault, not the product's. all in all, a good product especially if you plan on doing other things to increase it's power, and the metal priming rod from the other kit is almost essential despite the installation snafu.
Overall it's a amazing kit, my darts are firing much more consistently and I'm very happy, however occasionally when a dart chambers it will get stuck in the barrel and destroy the dart, it's not frequent, but frequent enough for me to mention it, overall very happy with it though
My nexus pro is now a terrifyingly power device, I accidentally broke one of my monitors with it lmao
Got both metal upgrades just to see what I could do with them. Installed this one first, just to try it out. went in smoothly and was easy to install (aside from a minor hiccup when I couldn't remember which side the knurling was on the pin connecting the priming bar and the pusher). With the stock spring and a spacer I was getting between 200 and 210.
My nexus pro performs so much better now.