Dude, just get more mags. It's as simple as that. Long mags in pistols are very unwieldy when they're holstered. Just make sure you have at least a couple of spares and you're fine. If you're gaming, your pistol is your backup anyway. Most people rarely use their pistols unless they end up having a problem with their primary or run out of ammo.
If it's just for plinking, then high capacity isn't really required.
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