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Handgun barrel length

Originally posted by u/SBMS-A-Man108 at 2025-06-05T20:47:07Z

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Hi, coming here with a mechanical question of sorts. Not really a 3D printing question per see (though it relates to a project I will do) but I figured some of the mad scientists in here would have good answers.

I just got a 5" M2.0, and curiosity got the better of me so I tried putting the barrel in my Carry Comp to see if it would fit. It fit, so that got me wondering exactly how stupid I was, or if I was actually a genius discovering the ultimate slide lightening technique of just having a short (and cut) slide with the ballistics advantages of a longer barrel. Not sure if I would actually prefer the light slide or not, but I am mostly curious from a technical standpoint. In particular, I have the new RXM and will start CADing some grips to 3D print and may want to make some atypical designs that would be complemented by an atypical barrel for a 4" slide.

I called S&W customer service and they said it wouldn't blow up but I might have FTF.

Upon googling this I found this video: https://www.youtube.com/shorts/zPXujXC-Hyw

The vid is quite funny but not comprehensive, of course. Regardless, I don't see many products online for extended barrels, except for those with threads, but I'm barred from getting those.

So, with that being said, I come here seeking various opinions on the matter.


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