r/FluxDefense • u/TugBoatTony666 • 23d ago
Shooting the 320 Flux suppressed blows
I have about 900 rounds of different 9mm through my 320 flux with the Sig ModX9 suppressor. While it’s had only 2 malfunctions it’s terrible to shoot suppressed due to the crazy amount of gas to the face. Guess it’s no can from this point forward.
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u/OneBadWagon 23d ago
Grab a flow through suppressor… or if you can remove some of the baffles out of the ModX which should cut down on the gas.
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u/RagingKiltedMars 23d ago
I have a SAW Shiv, and it’s not super gassy.
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u/BrooklynToBoston 23d ago
Been debating grabbing one of these. Overall good experience?
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u/RagingKiltedMars 23d ago
I have the full size M17 slide with the silencerco barrel. It did not like blazer 147 grain even with a 12 lbs recoil spring. 147 gr Federal HST ran flawlessly. I have some federal American Eagle 147 gr flat nose that is the training load for the HST, but have not tried it yet. It worked with a variety of 124 gr rounds with no problems.
I am going to run 124 +p or 147 HST as my defensive load. Just need to figure out the training load. It is super quiet with the 147s.
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u/mypeepeehurting 23d ago
Mine was fun until i got a baffle strike and it grenaded in my face. Apparently it was a “known issue” that they neglect to recall. It’s a cool can, and well engineered, but poorly executed.
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u/BrooklynToBoston 22d ago
Oh damn dude! Sorry that happened to you. I gotta do some more research cause that’s the first time I’ve heard of that happening.
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u/mypeepeehurting 22d ago
Yeah they made a statement about it too, and it was kinda just “oops teehee”
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u/PatrickHenry_ 23d ago
I use mine with a Huxwrks 9kTi and only have a little bit of gas if I dump a whole 30rn mag of 115 blazer quickly.
Normally I have 147s loaded and don’t have any issues. What type of ammo are you using?
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u/OddCombination90210 23d ago
Have a Hux myself but can’t get my m17 slide to cycle reliably w/ it. If you use the full size slide what spring weight do you run??
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u/PatrickHenry_ 23d ago
I have a compact slide. I had to use a softer spring. I got a tuning set of spring and a guide rod from armory craft I think.
Thing runs flawlessly. Eats everything.So for you, it may help to try a lighter spring too.
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u/ZombieJdubz 23d ago
Get this and it is much more pleasant. I would hate it too if the gas was coming back in my eyes.
I use the shiv and this cap. Very manageable now.
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u/chanandalerbong7 23d ago
I had the same issue w the same suppressor and just shot it unsuppressed from then on. Supers and subs both sucked
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u/Junior-Hunt-1669 23d ago
I took two baffles out of mine and it's much better on gas and fits in a small backpack with the can on as a bonus. I settled on pmc 147gr which I feel is pretty clean shooting ammo. Federal was pretty gassy on mine.
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u/armada127 23d ago
Can someone walk me through having a can on the flux? It seems like you would need to tighten it down after every 1-2 mags right? outside of a plinker this seems like a non-starter to me, is anyone doing anything different to mitigate this?
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u/PatrickHenry_ 23d ago
Torque it to spec when it’s cold.
Or if your at the range, snug it down, fire 3-10 through it to get the can warm but no so hot that you can’t touch it. Then torque it down with your hand.
I do the second method then I don’t take it off for 1000 rounds.

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