Was using 5 mags 4 are uzi The 5th was a KKK 30 rounder. ($21.00)for 21 bucs best damn deal on the market. will be getting many more. ALL worked under full auto an semi. Awesome kick.
Blazer alum case round seems to drag just under the lips of all the mags which made for a miserable operation Extremely hard to peel off a round while it was loaded in the mag. Switched to Winchester Brass white box and never had any problems at all. ran like a champ. ran 300-400 rounds thinking the upper was broken in,I tried the blazer and VIOLA MISerable problems came back....So the trick is I use brass and not AL.
Hard to beleive the 9mm kicks more then the 223 but it sure does.
Next to the ceiner M16 conversion and mag this is way up there on the best purchase list..... I am now getting the barrel cut down to 10.5