The Mech Tech is very well worth the cost. Consider it a Glock FORCE MULTIPLIER. You can extend the range of your ammo and it is much easier to shoot accurately at distance.
With simple instructions I had my kids hitting a steel silhouette at 50 yards in a few minutes, that afternoon at 100 and 150 yards. G22 40 S&W.
I have pushed it out to shooting a steel oil drum at 323 yards with 155 gr JHP standard pistol ammo. My Mech Tech has a simple Vortex Strikefire red/Green Dot Sight with zero magnification. This is over doubling my effective handgun range. Yes, I know the bullet has lost most of it's steam at that distance but I wouldn't want to be standing there....
Desert pic in New Mexico. Shot up to 100 yards and three brands of ammo.
The only difference in the carbine now is M16 flip-up front and rear sights installed. They co-witness through the sight perfectly. I have fired 125 Frangible, 180 Subsonic, 155 and 180 JHP, The hotter rounds work best and the Subsonic had the several malfunctions during break in. Now it eats everything. It is a little heavy but has child friendly recoil.
Maintenance at first sounds difficult but it is incredibly simple; a few steps to fully dissassemble and cleans up easily. reassembly is a breeze too.
If you could pop a few rounds downrange you would be sold by the thrid round. I picked up several Glock factory 22 round 40 S&W magazines and they work great.