The price is right and it worked fine - Radical Firearms RF Micro Adjustable Gas Block .750

I installed is on a severely over gassed AR 15 pistol with a 7.5" bbl, shooting 5,56 62 gr green points. The ejection was almost @ 1;00 (straight out)and the gun kicked like a mule. Installed this block with locktite, backed the lock screw out, closed the adjustment screw, then backed it out 1/4 turn loaded a mag with 1 round, no ejection backed it out another 1/4 turn bang got ejection but at 6:00 almost straight back another 1/4 turn got 4;30 I want this hog to eject at 3;00 another 1/4 turn got me @ 3;00 perfect, and as a bonus reduced the recoil by 1/2 on this hand cannon. So with 5 rounds the gas block came thru. I tried to tame this gun with heavy buffers and stiff recoil springs so stiff I could barely charge the darn gun. Went to a Spikes flat spring much more pleasant to charge and shoot. Yep this block tamed this cannon of a gun. Getting ready to order another one for my 7.62 x 39 10.5" bbl hand cannon.