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Posted: 8/17/2018 3:04:13 PM EDT
[#1]
Quote HistoryQuoted:
No they don't. Suppressors foul every operating system equally. |
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Posted: 8/17/2018 3:06:55 PM EDT
[#2]
Quote HistoryQuoted:
I really wish people would stop regurgitating this tripe..... Quote HistoryQuoted:
Quoted:
I won't go with a piston system because I understand how a piston system breaks the mode of operation of the DI gas system. Piston systems eliminate the backpressure ..... *SNIP* |
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Posted: 11/14/2018 2:45:16 PM EDT
[#3]
Quote HistoryQuoted:
I run piston because I like to breath while shooting suppressed. On my DI AR, I can only fire a few rounds before I choke. |
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Posted: 11/30/2018 5:43:40 PM EDT
[#4]
Quote HistoryQuoted:
Not if most of the gas is not getting past the op rod. Quote HistoryQuoted:
Quoted:
No they don't. Suppressors foul every operating system equally. what gas, getting past what op rod... are you talking about? |
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Posted: 11/30/2018 6:26:38 PM EDT
[#5]
Quote HistoryQuoted: Mostly, from experience. Short answer is that it's not necessary - tens of millions of rifles run just fine on DI, and they're cheaper and lighter. If you happen to run crappy ammo, or have an SBR or suppressor, where a lot of particulate residue can make it back into the receiver, then a piston helps stop some of that, at the cost of other drawbacks. |
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Posted: 11/30/2018 6:27:22 PM EDT
[#6]
Quote HistoryQuoted:
Suppressors act like sponges an often create low gas situations that result in short cycling or not cycling at all. The piston can usually over come that. That's why people say what they do. You don't normally need them in a 16" or longer suppressed rifle unless you're running light loads. |
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Posted: 11/30/2018 7:36:40 PM EDT
[#7]
If I am running a 10" or smaller barrel...I am going piston...as a lefty...I also like the smaller amount of gas in my face...but a properly setup DI gun manages that pretty good though.
Look at LMT...when they submit to a trial...they have beat out FN, HK and others with their piston designs...as a DI system. |
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Posted: 11/30/2018 8:39:48 PM EDT
[#8]
Quote HistoryQuoted:
No they don't. Suppressors foul every operating system equally. |
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Posted: 12/7/2018 6:32:32 AM EDT
[#9]
Quote HistoryQuoted:
Suppressors act like sponges an often create low gas situations that result in short cycling or not cycling at all. The piston can usually over come that. That's why people say what they do. You don't normally need them in a 16" or longer suppressed rifle unless you're running light loads. I truly need a magical energy absorbing suppressor, like the one you have described. They should tack this post for all to read. 
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Posted: 12/7/2018 2:26:34 PM EDT
[#10]
Quote HistoryQuoted:
Suppressors act like sponges an often create low gas situations that result in short cycling or not cycling at all. The piston can usually over come that. That's why people say what they do. You don't normally need them in a 16" or longer suppressed rifle unless you're running light loads. |
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Posted: 12/7/2018 3:16:40 PM EDT
[#11]
Quote HistoryQuoted:
Suppressors act like sponges an often create low gas situations that result in short cycling or not cycling at all. The piston can usually over come that. That's why people say what they do. You don't normally need them in a 16" or longer suppressed rifle unless you're running light loads. 
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Posted: 12/7/2018 5:08:58 PM EDT
[#12]
Wow..........now I’ve heard everything.
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Posted: 12/30/2018 11:38:17 AM EDT
[#13]
Quote HistoryQuoted: Thanks. I completely get that piston ARs aren't "necessary" but I really didn't want to get into that in this thread. I was just more curious about the statement that I have read and heard a few times that you don't even need to consider a piston AR unless you are doing a SBR and/or suppressor. Was just curious why that was and the physics behind it, or if it was just one of those old internet rumors that keeps getting repeated because it is on the internet. Also, if you shoot a lot on full auto you may begin to see the benefit of heat distribution in piston setups. But this applies in 1% of applications. |
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Posted: 1/6/2019 2:49:05 AM EDT
[#14]
I looked at quite a lot of posts on piston AR's, but did not see anything that mentions any issues/problems in using a cam roller with a piston BCG. Are there?
I am not concerned with costs, and not only with the roller cams, but not with the difference between a DI and a piston. If that makes a difference, why not just shoot a .22? Just my way of thinking. |
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Posted: 2/17/2019 10:29:42 PM EDT
[#15]
Quote HistoryQuoted:
Suppressors act like sponges an often create low gas situations that result in short cycling or not cycling at all. The piston can usually over come that. That's why people say what they do. You don't normally need them in a 16" or longer suppressed rifle unless you're running light loads. What brand of suppressors have you been shooting? First I've ever heard of a cab making a gun undergassed |
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