|I got these 2 weeks ago and have had issues from day one. The spring inside was covered in surface rust and was so stiff that I had to cut 2 full coils off of the top just to get the gun to cycle. (I loaded the mag, and when I pulled back to chamber the first round the mag put so much pressure on the bolt that it held it in place!!!)
Also after only 40 rounds (only 2 uses) the left side of the mag mouth (part that holds the round in) cracked and broke off.
Will never buy another ProMag product as long as there are other options.|