My Glock 27 is "hard".

[Lightsped]

I was issued a G27 for backup carry a few weeks ago. The gun is brand new. I have noticed that it is quite difficult to rack the slide with a full magazine in place. Its simple to rack without a full mag.

My issued G22 and my other guns do not have this problem. Any ideas?

 

[croyance]

When you say that it is easy to rack without a full magazine, do you mean that a partially loaded magazine or empty magazine do not cause this problem?
Perhaps the feed lips on the magazine are a little wide, causing the top round to push up on the slide, so the resistance you feel is racking against a round. This would be most pronounced when the magazine is full, and the spring pushing the hardest. When you inspect the chambered round, is there unusual wearing on it?

 

[Lightsped]

Yeah, it is only hard to rack the slide with a full mag. With a empty or partially full mag the gun appears normal. With a full mag, the gun does feel as if the slide is having trouble accepting the first round of a full mag.

 

[Powderman]

It will be that way until the magazine is broken in. Keep it fully loaded when not in use. This way, the springs will lose a bit of stiffness.

 

[defox]

Glocks cycle more coarsely when new; just keep at it until it loses some of the coarseness. Avoid full mag plus 1 carry until the mag spring softens.

 

[Onslaught]

I put Pearce +1 extensions on my 27, and it took 4 days before I could get that 10th round in the mag. I still can't insert a full magazine into the pistol with the slide in battery. No big deal, I can't top off for 10+1 in the gun, but I can still carry a 10 round spare.