Far exceeded my expectations - Strike Industries Micro Threaded Comp - CIRCLE

This thing works WAY better than I expected. I expected it would be basically a thread protector, with barely noticeable (but noticeable) recoil reduction. Wow, this reduced a lot more than "barely noticeable" amounts of recoil on my 43X MOS. With the gun fully decked out (Streamlight TLR7sub, Holosun EPS, +5 magazine) and this comp, I was able to mag-dump 20 rounds as fast as I could run the trigger (and I can run a trigger pretty fast) into an approx 14 by 14 inch target (end of a stump) at 10 yards, and keep the dot on the target under recoil. Without this comp, the dot 100% rises above the target with every shot.

Also, for comparison, I shot this exact same gun with

a) A uncomp'ed barrel
b) an extended and ported (at the tip) barrel
c) A Micro Dagger C1 slide (the slide itself has ports in the end) (note: no red dot on this one)

This comp worked significantly better than the stock/uncomp'ed barrel. It worked very noticeably better than extended+ported barrel (which surprised me). And, I am shocked to say, this comp worked 100% as good as, and maybe even a bit better than the ported slide.

All that said, let me make some notes, for people who have unrealistic expectations.

There are 2 aspects of handgun recoil - how hard it comes back at you (ft lbs), and how hard the muzzle flips up (muzzle rise).
They are related (a lot of ft-lbs will make a lot of muzzle rise), but they are not the same. A full size comp will reduce both of those things. Micro comp's like this pretty much only reduce muzzle rise. If they were reducing how hard the slide comes back, you'd need lighter springs and special ammo and so-on like a competition pistol shooter does. So no, you're not going to put this on you gun and have it shoot dead flat like a competition pistol - it's mechanically impossible.

Also keep in mind that smaller/shorter guns like the G43x and P365 and such have a lot of muzzle flip due to their size/weight (or lack thereof) and weight distribution. Longer/heavier guns (G34, G17, etc) don't have nearly so much muzzle flip because of both the weight and the distribution of the weight. So what you perceive as recoil on the big gun is mostly the ft-lbs, and what you perceive as recoil on the little gun is ft-lbs+muzzle rise. A micro-comp only reduces the muzzle rise, so if you drop this on a bigger gun, you won't notice near as much difference as you would with it on a smaller gun.

Hope this helps.