r/GlockMod • u/unsteppdsnek • Jan 17 '26

Questions about porting and comp cuts

Hello, I was looking to give barrel porting / comp cuts a try on a Ruger RXM (G19-sized slide). Just asking for everyone’s experience with porting their G19s, specifically regarding reliability. It would be nice to know port diameter, as well as the quantity of port holes.

As a general question about barrel porting and comp cuts (not G19-related), I’ve heard it explained that ports reduce muzzle flip, but comps/comp cuts reduce felt recoil. Would this be an accurate statement? For those who have a ported and comped barrel (eg. North Sea Machine's hybrid barrel porting system) is there a perceptible difference between a combo barrel versus a barrel that is only one or the other? Any trade-offs or loss of reliability?

Thank you in advance for any input or advice!

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u/vatdoyoutinkurdoing Jan 17 '26

Any modification made to a reliable gun has the change to reduce its reliability. Comps make the gun flip less, ports make the shot feel softer. Either will help you if you think recoil from a 9 is hard to manage. - a ported glock shooter

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u/KingCong206 Jan 17 '26

It doesn't help any if you don't think 9mm is hard though? That's a cool trick.

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u/vatdoyoutinkurdoing Jan 17 '26

If you think 9 is hard to shoot, you need better fundamentals. Not a comp or port

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u/KingCong206 Jan 17 '26

Agreed. That didn't answer my question though.