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10mm-Auto

Firearms => 10mm semi-auto handguns => Topic started by: 4949shooter on August 10 2015 04:30:11 PM MDT

Title: Will a G40 Complete Upper Fit and Work on a Gen 4 G20 Frame?
Post by: 4949shooter on August 10 2015 04:30:11 PM MDT
I asked this question on another forum but I haven't gotten a definitive answer as of yet.

I have made up my mind that my next 10mm will be an all steel gun (this will undoubtedly make Intercooler happy  ;)). Though, I would like the long slide capability in Glock. I am thinking of getting a G40 upper for my Gen 4 20 frame. I was just wondering ahead of time if it will work.

I know they won't be available for a while.

Thanks.
Title: Re: Will a G40 Complete Upper Fit and Work on a Gen 4 G20 Frame?
Post by: Intercooler on August 10 2015 04:49:06 PM MDT
Doesn't the aftermarket already have long slide setups for it?
Title: Re: Will a G40 Complete Upper Fit and Work on a Gen 4 G20 Frame?
Post by: 4949shooter on August 10 2015 06:05:36 PM MDT
Yes. Lonewolf does, though I think they are compatible with Gen 3 only?

I could slap a LWD on my Gen 3, though I would rather go with the Gen 4 Glock system.
Title: Re: Will a G40 Complete Upper Fit and Work on a Gen 4 G20 Frame?
Post by: DM1906 on August 11 2015 09:13:10 AM MDT
Quote from: 4949shooter on August 10 2015 06:05:36 PM MDT
Yes. Lonewolf does, though I think they are compatible with Gen 3 only?

I could slap a LWD on my Gen 3, though I would rather go with the Gen 4 Glock system.

They work fine with Gen 4 frames. Gen 3 RSA's only, though. The additional slide mass minimizes/negates the composite spring advantage. The open-top long slide is still heavier than the OEM 4.6" slide. If you don't want a heavier slide, there are a lot of creative methods to lighten it.
Title: Re: Will a G40 Complete Upper Fit and Work on a Gen 4 G20 Frame?
Post by: 4949shooter on August 11 2015 02:42:56 PM MDT
Thanks.
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