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Posted: 8/12/2020 10:12:31 PM EDT
[#1]
@coregon
I know you were gonna list gas piston port sizes at some point. Did you happen to get that going? I'm thinking of trying a smaller gas valve first - I really want this to be my primary short gun. |
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Posted: 8/12/2020 10:20:58 PM EDT
[#2]
Delete
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Posted: 8/13/2020 9:38:17 AM EDT
[#3]
Delete?? EXPLAIN
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Posted: 8/13/2020 11:09:43 AM EDT
[#4]
What suppressor and ammo? Tried sealing the charging handle with silicon?
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Posted: 8/13/2020 11:19:15 AM EDT
[#5]
556 M855 on the ammo. YHM Turbo K for the suppressor, so fairly high back pressure.
I run this whole setup on an MK18 with 0 gassing issues. I haven't tried messing with the CH yet. I have done the silicone trick before on other guns. |
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Posted: 10/10/2020 6:22:13 PM EDT
[#6]
thats just blow back from your can. all that gas has to go somewhere.
i’ve never noticed a gas difference btw DI AR’s and piston AR’s. are you left handed? i am and noticed its way worse that shooting righty. i get almost nothing in my face shooting righty. |
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Posted: 10/10/2020 7:15:22 PM EDT
[#7]
On my 16" DI midlength adjustable gasblock AR and Saker ASR 556K, I had a significant amount of blowback with rapid rates of fire, however the same can on my MCX 11.5, I have very little blowback, and almost none at a low rate of fire. Some cans produce much higher amounts of gasses than others, such as my Ultra 7 on my PWS Mk109 with 300 BO S&B 200gr subs has quite a bit of blowback.
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Posted: 10/10/2020 7:51:24 PM EDT
[#8]
high bypass can like OSS helix??
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Posted: 10/21/2020 5:37:34 PM EDT
[#9]
MCX is literally the gassiest piston gun I have ever shot...its terrible...hence why I do not own one anymore...
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Posted: 10/21/2020 10:24:47 PM EDT
[#10]
I found that the stock charging handle does the best at keeping the gas at bay. Raptors let a bunch of it out the right side latch.
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Posted: 10/22/2020 9:04:31 AM EDT
[#11]
For 556 it is a bit gassy, depending on the can..(SF cans are the lowest gas for this gun from my experience). For 300 blackout however.....its great.
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Posted: 10/26/2020 4:55:54 PM EDT
[#12]
Anyone tried with DeadAir Sandman w/ 556?
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Posted: 10/27/2020 8:57:32 PM EDT
[#13]
huh I never noticed an issue with my SF Mini... this is the pistol hybrid 11.5" gun they sold a couple years ago so pre Virtus upper, still has the two gas settings.
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Posted: 10/29/2020 10:03:44 AM EDT
[#14]
I really wish Sig would make the gas valve's readily available and tell us what the sizes are.
I would love to try and make my 16" 300 Blackout barrel work better with supers - it is waaaay over gassed. |
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Posted: 10/29/2020 10:39:44 AM EDT
[#15]
Quote HistoryQuoted: I really wish Sig would make the gas valve's readily available and tell us what the sizes are. I would love to try and make my 16" 300 Blackout barrel work better with supers - it is waaaay over gassed. Maybe a capable aftermarket company such as PMM could make something like this. |
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