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Posted: 4/10/2014 12:02:20 PM EDT
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One of the things that I hear about concerning ARs and suppressors is blowback. Would changing the upper receiver to something like this help with that?
Sidecharger |
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Quoted:
One of the things that I hear about concerning ARs and suppressors is blowback. Would changing the upper receiver to something like this help with that? Sidecharger I know what you are getting at, but look carefully at the rear of the side-charging receiver. Notice they just put a filler block there. The gas will still escape under and around the filler block. For the price you're paying for this receiver, you can probably do all of the folllowing: 1) get a gas buster charging handle 2) get the forward assist vent 3) get an adjustable gas block designed for suppressors Alternately, you can just install a good piston conversion like the Adams Arms that I'm using. Conversion costs about the same as the upper you linked, and it includes the bolt carrier so you can dump your used carrier, gas tube, and gas block on EE. Finally, if you just want a side-charger, there are 'better' options available. I would not suggest any of them. Just run it with the gas buster. Better yet, shoot it without any of these devices and see if the gas really bothers you. Some people tolerate the same level of gas that will send a noob crying to his mommy. Some people LIKE lots of gas. |
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Old thread that may interest you: http://www.ar15.com/forums/t_6_20/417552_Overgassing_Concerns.html |
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What's funny is that I saw the pic of this when I got an email from Bushnell about it, linked to it, and didn't even look at the price. Yeah, no friggin way I'm paying that much for one. Thanks for the info Badger Here's a video of WAY too much gas. I took the video at an industry shoot. This was Osprey Arms and their gas piston. They had a demo gun with the top handguard removed. You can see a TON of gas blowing back right into the shooter's face. I shot the same gun and had zero problem with it. Just don't breathe in while you're shooting. Bad technique shooting any gun while your'e breathing in anyhow. Osprey Arms piston system suppressed, no handguard. |
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Quoted:Just don't breathe in while you're shooting. Bad technique shooting any gun while your'e breathing in anyhow.
First off, yea, almost every piston system I've seen is overgassed by default, and far more so when suppressed. Second... It has nothing to do with breathing. Its your eyes. Unless you also recommend shutting your eyes while shooting, I have to interject that I could give a shit about a little amonia I'm breathing in, but I don't care how tough you think you are, it will get in your eyes and you will have to blink and squint. There isn't much you can do about that. General LOL at the still-ongoing myth that pistons are "so much better" for suppressed applications. |
| I heard going to a 762 can will have less blow back due to more volume and large bore when shooting 556/223 vs dedicated 556 can. I can't attest to that since I've only shot mine using a 762 can and the blow back does not bother me, though on a cold day, you can definately see where the gas is escaping from. |
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Quoted:
First off, yea, almost every piston system I've seen is overgassed by default, and far more so when suppressed. Second... It has nothing to do with breathing. Its your eyes. Unless you also recommend shutting your eyes while shooting, I have to interject that I could give a shit about a little amonia I'm breathing in, but I don't care how tough you think you are, it will get in your eyes and you will have to blink and squint. There isn't much you can do about that. General LOL at the still-ongoing myth that pistons are "so much better" for suppressed applications. What the fuck do you think you are you talking about? The OP was talking about gas blowback. Your first point is, uh, pointless to this argument. He was talking about gas to the face, not 'overgassing' which is having too much pressure in the gas system. A DI gun (AR-15.com anybody?) blows that pressure directly back through the gas tube. A suppressor means that that gas keeps blowing into your face. A piston gun means that gas only comes out the rear of the barrel. In my experience, it's about DOUBLE the gas on a DI versus any piston gun. Not only my experience, but others' as well. Since YOU don't like pistons doesn't mean that their advantages are a Myth. You're WRONG. On your second point I will say again, some are not bothered by the gas in their faces. Are you calling me a liar? Gas to the face does not bother me. You seem to call lots of people liars on this forum and your 'opinion' always seems to trump other peoples's opinion. This is the internet, I get it, but this is also ARFCOM. Please be more civil. |
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I heard going to a 762 can will have less blow back due to more volume and large bore when shooting 556/223 vs dedicated 556 can. I can't attest to that since I've only shot mine using a 762 can and the blow back does not bother me, though on a cold day, you can definately see where the gas is escaping from. Some cans are reported to have less blowback due to their baffle design. The Saker 5.56 has a reverse cone blast baffle that will reduce back pressure. I don't have enough experience to tell you one way or another if that applies to the 7.62 with its larger volume either. It varies can to can based on design. I think we'll see more designs in the future with cores designed to reduce back pressure. This is especially true on the AR-15 in general and DI guns specifically due to their gas-unfriendly design. |
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Some cans are reported to have less blowback due to their baffle design. The Saker 5.56 has a reverse cone blast baffle that will reduce back pressure. I don't have enough experience to tell you one way or another if that applies to the 7.62 with its larger volume either. It varies can to can based on design. I think we'll see more designs in the future with cores designed to reduce back pressure. This is especially true on the AR-15 in general and DI guns specifically due to their gas-unfriendly design. Quoted:
Quoted:
I heard going to a 762 can will have less blow back due to more volume and large bore when shooting 556/223 vs dedicated 556 can. I can't attest to that since I've only shot mine using a 762 can and the blow back does not bother me, though on a cold day, you can definately see where the gas is escaping from. Some cans are reported to have less blowback due to their baffle design. The Saker 5.56 has a reverse cone blast baffle that will reduce back pressure. I don't have enough experience to tell you one way or another if that applies to the 7.62 with its larger volume either. It varies can to can based on design. I think we'll see more designs in the future with cores designed to reduce back pressure. This is especially true on the AR-15 in general and DI guns specifically due to their gas-unfriendly design. The Saker 556 has quite a bit of blowback. |
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What the fuck do you think you are you talking about? The OP was talking about gas blowback. Your first point is, uh, pointless to this argument. He was talking about gas to the face, not 'overgassing' which is having too much pressure in the gas system. A DI gun (AR-15.com anybody?) blows that pressure directly back through the gas tube. A suppressor means that that gas keeps blowing into your face. A piston gun means that gas only comes out the rear of the barrel. In my experience, it's about DOUBLE the gas on a DI versus any piston gun. Not only my experience, but others' as well. Since YOU don't like pistons doesn't mean that their advantages are a Myth. You're WRONG. On your second point I will say again, some are not bothered by the gas in their faces. Are you calling me a liar? Gas to the face does not bother me. You seem to call lots of people liars on this forum and your 'opinion' always seems to trump other peoples's opinion. This is the internet, I get it, but this is also ARFCOM. Please be more civil. Quoted:
Quoted:
First off, yea, almost every piston system I've seen is overgassed by default, and far more so when suppressed. Second... It has nothing to do with breathing. Its your eyes. Unless you also recommend shutting your eyes while shooting, I have to interject that I could give a shit about a little amonia I'm breathing in, but I don't care how tough you think you are, it will get in your eyes and you will have to blink and squint. There isn't much you can do about that. General LOL at the still-ongoing myth that pistons are "so much better" for suppressed applications. What the fuck do you think you are you talking about? The OP was talking about gas blowback. Your first point is, uh, pointless to this argument. He was talking about gas to the face, not 'overgassing' which is having too much pressure in the gas system. A DI gun (AR-15.com anybody?) blows that pressure directly back through the gas tube. A suppressor means that that gas keeps blowing into your face. A piston gun means that gas only comes out the rear of the barrel. In my experience, it's about DOUBLE the gas on a DI versus any piston gun. Not only my experience, but others' as well. Since YOU don't like pistons doesn't mean that their advantages are a Myth. You're WRONG. On your second point I will say again, some are not bothered by the gas in their faces. Are you calling me a liar? Gas to the face does not bother me. You seem to call lots of people liars on this forum and your 'opinion' always seems to trump other peoples's opinion. This is the internet, I get it, but this is also ARFCOM. Please be more civil. ... You posted a piston video... Maybe you forgot that? The piston comments were to you. They are almost all overgassed. HK416 included fwiw, lest anyone think it's just an Osprey issue. The rest of the comments, no, I'm not calling you a liar. I'm saying you don't really understand the issue. No one is immune to burning eyes, breathing has nothing to do with it. If you aren't getting gas in your eyes, congrats, your guns must have lower blowback than most. |
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... You posted a piston video... Maybe you forgot that? The piston comments were to you. They are almost all overgassed. HK416 included fwiw, lest anyone think it's just an Osprey issue. I'm saying you don't really understand the issue. No one is immune to burning eyes, breathing has nothing to do with it. If you aren't getting gas in your eyes, congrats, your guns must have lower blowback than most. The Osprey piston may or may not be overgassed with a suppressor, but it is not adjustable so I'm guessing it's overgassed. My point, again, is that it's irrelevant. I was posting a video of EXTREME blowback in the face. And, yes, my Adams Arms systems (1 organic, 2 conversions) do have less blowback... BECAUSE they're piston guns. DI guns have double what I've experienced with mine. |
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Quoted:
I heard going to a 762 can will have less blow back due to more volume and large bore when shooting 556/223 vs dedicated 556 can. I can't attest to that since I've only shot mine using a 762 can and the blow back does not bother me, though on a cold day, you can definately see where the gas is escaping from. 762sd on an 18" with a rifle gas system and 5.56 was pretty miserable to shoot. Never tried a 223 can on there so I have no reference to go by |
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Quoted:
I heard going to a 762 can will have less blow back due to more volume and large bore when shooting 556/223 vs dedicated 556 can. I can't attest to that since I've only shot mine using a 762 can and the blow back does not bother me, though on a cold day, you can definately see where the gas is escaping from. My TBAC-30BA has a lot of blowback on my 18" rifle-gas SPR. The Surefire 556-RC I've shot had less. My buddy with a Halo and the Surefire said the gas to the face is drastically less with the Socom. |
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