G27 with G23 magazine issue

[jervboy]

I recently purchased a very lightly used G27, I love it. I followed another forum members advice and got a mag extension for the one mag that came with it and also purchased a G23 13 round mag and an ex-grip sleeve for it, very nice set up. My issue is with one round in the pipe the G23 magazine is almost impossible to rack the slide, I had it at the range and it won't fire with 13 +1, so I can't carry it with 13+1. I can carry the G23 mag as a back up and ten rounds in the G27 mag with the extension but even that is tight. I thought at first it was an issue with the mag that came with but then I got the G23 mag and it is really bad. I can have one in the pipe if I only have 12 rounds in the magazine. Anyone out there have a similar issue or an answer?

[bripro]

There is no reason it wouldnt fire due to a tight stack. Are you saying it is firing off the first round but not cycling the next? Ive never experienced that and my extensions also make it so I have to really slam the mag in when there is already a chambered round. As tight as it seems it always cycles though. If yours is really so tight that the pressure of the .40 is not blowing your slide back I would definitely give up on that extra round in the mag. You still have good firepower without it and the extension gives you a place for your pinky.

Why would one want to rack the slide with a loaded mag inserted and a chambered round anyway?

[jthrelf]

1) The mags may loosen up a bit. Load and unload it 20 times.

2) I usually carry one less than full capacity in double stack mags. 16 in a G17 mag, 9 in a G26 mag. Some may say it's stupid and not having that last round will get me killed, but it's just what I do for this reason. I'll have to check back, maybe my mags are loosened enough now I can carry full capacity.

[Deleted]

2) I usually carry one less than full capacity in double stack mags. 16 in a G17 mag, 9 in a G26 mag. Some may say it's stupid and not having that last round will get me killed, but it's just what I do for this reason. I'll have to check back, maybe my mags are loosened enough now I can carry full capacity.

Sound advice... I do the same as do almost all the Glock guys I know.

[jervboy]

There is no reason it wouldnt fire due to a tight stack. Are you saying it is firing off the first round but not cycling the next? Ive never experienced that and my extensions also make it so I have to really slam the mag in when there is already a chambered round. As tight as it seems it always cycles though. If yours is really so tight that the pressure of the .40 is not blowing your slide back I would definitely give up on that extra round in the mag. You still have good firepower without it and the extension gives you a place for your pinky.

Why would one want to rack the slide with a loaded mag inserted and a chambered round anyway?

When I bought the gun it was tight with 9 in the mag and one in the pipe, I was only racking the slide to cycle through the rounds and it was really tight on the first round. It did fire correctly at the range. When I bought the 13 round magazine I tried the same thing and I could not manually cycle the first round with one in the pipe and all 13 rounds in the mag then at the range I tried to fire it thinking the gun would cycle properly but I couldn't even pull the trigger, it was like it was stuck but I could fire it with one less round in the larger magazine. Also, I had no issues with my G22 mags with all 15 rounds and one in the pipe.

[NathanB]

Are you sure that the rounds ft the chamber correctly. Only time I've seen similar is when I had a round fail the case gauge

[Orive 8]

I usually carry one less than full capacity in double stack mags.

As do I (have been doing so since I started shooting back in 85 with a Hi-Power) and my wife.
More positive mag insertion with a chambered round in place.

[jervboy]

1) The mags may loosen up a bit. Load and unload it 20 times.

2) I usually carry one less than full capacity in double stack mags. 16 in a G17 mag, 9 in a G26 mag. Some may say it's stupid and not having that last round will get me killed, but it's just what I do for this reason. I'll have to check back, maybe my mags are loosened enough now I can carry full capacity.

I'll probably just carry the G23 mag with 12 in the mag if I am going to carry one chambered, otherwise the 13 as a back up is fine. It sounds as if it is somewhat common with one in the pipe to have the double stack mag at capacity. I admit I don't have this issue with my single stack G36.

[dkf]

I noticed .40 is a lot tighter in the Glock mags than .357sig. I don't have a Glock .357 or .40 mag that I can't easily load to capacity with .357sig, but .40 in the same mags is tight. I figure the smaller bullet of the sig allows the rounds to nest better in the mag. I'd carry -1 in the mag until it loosens up.

[middlefinger]

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i carry a 27 with a 23 mag.....never had a malfunction but i usually partly fill the mag then rack one in the chamber then fill the mag the rest of the way