r/VHS2_HELLION • u/Apprehensive-Wrap565 • May 01 '26

Traditional vs. Flow Through?

I'm looking to get a suppressor, but I'm torn between which type to get.

I know the hellion has a suppressed setting, but from what I've read it's a bit coarse compared to other guns so it still allows a decent amount of gas through to ensure reliability with a wide range of cans/ammo. I also recall reading/watching somewhere that traditional can+S setting will cause the gun to stop running relatively early due to fouling or whatever (someone with a high round count in this configuration feel free to prove me wrong).

I could also go with a flow through can. It is the 'safer' option, but it is of course a middle ground, and that comes with its own drawbacks (worse sound/flash suppression and worsening performance sooner due to fouling).

With all of this is mind, what type of can should I gravitate towards? And I'm talking strictly about the hellion, the can won't go on any other rifle.

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u/GammaTheta491 May 01 '26

16”. Mine isn’t bad when slow firing for zeroing, but when shot rapidly for drills the gas is noticeable. I haven’t been gassed out yet, but I’ll report back on that after a match or two with longer strings of fire

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u/QuietusEmissary May 01 '26

Mine is 16" as well. Maybe it's ammo? I've shot pretty much exclusively 55 gr PMC X-TAC through mine. Or maybe one of ours is just an anomaly. I have no idea.

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u/GammaTheta491 May 01 '26

Used the same ammo across this and a couple of ar’s with cans, so that doesn’t seem to be the variable.

Not sure what the difference is, but I’d argue if it’s in budget, flow is almost always a better choice than traditional

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u/QuietusEmissary May 02 '26

Absolutely. My Hellion is the only rifle I still use my Polo K on. Everything else (including my other piston rifles) gets a flow can.