Posted: 4/27/2012 2:53:02 PM EDT
| Does anyone make a buttstock or just a buffer that you can lock so it won't move? I have a 9mm blowback AR that I've suppressed. I think it would be cool if I could lock the buffer so I didn't get any action noise or any of the sound escaping from the breach. Aside from being blowback the rifle is normal. It would have been nice to get an adjustable gas block but that won't work too well for me. Any ideas? |
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What's rules out the adjustable gas block? I can shut the gas off with a Allen key in about a minute with mine.
I wouldn't recommend putting something solid behind the carrier to keep it from moving while the gas port is still open. Your parts are not designed for that load. |
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Quoted: I thought most 9mm were recoil/blowback operated not gasWhat's rules out the adjustable gas block? I can shut the gas off with a Allen key in about a minute with mine. I wouldn't recommend putting something solid behind the carrier to keep it from moving while the gas port is still open. Your parts are not designed for that load. EDIT I agree with the second part though |
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What's rules out the adjustable gas block? I can shut the gas off with a Allen key in about a minute with mine. I wouldn't recommend putting something solid behind the carrier to keep it from moving while the gas port is still open. Your parts are not designed for that load. Ummmm....9mm blow back Eta: 2 seconds! Damn slow phone!!! |
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What's rules out the adjustable gas block? I can shut the gas off with a Allen key in about a minute with mine. I wouldn't recommend putting something solid behind the carrier to keep it from moving while the gas port is still open. Your parts are not designed for that load. Ummmm....9mm blow back Eta: 2 seconds! Damn slow phone!!! I was not aware of that. The part about the components not being designed for those loads still stands. I'm not saying they will break, just raising the flag to proceed with caution. |
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What's rules out the adjustable gas block? I can shut the gas off with a Allen key in about a minute with mine. I wouldn't recommend putting something solid behind the carrier to keep it from moving while the gas port is still open. Your parts are not designed for that load. Come on man. Really? It doesn't have a gas system. |
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No excess loads.
With carrier motion arrested by lock pin, bolt head is locked in barrel extension. all pressure is contained in normal fashion, by brass cartridge case in chamber, breach bolt is not free to move rearward until rotated out of engagement with locking lugs. |
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What's rules out the adjustable gas block? I can shut the gas off with a Allen key in about a minute with mine. I wouldn't recommend putting something solid behind the carrier to keep it from moving while the gas port is still open. Your parts are not designed for that load. Ummmm....9mm blow back Eta: 2 seconds! Damn slow phone!!! I was not aware of that. The part about the components not being designed for those loads still stands. I'm not saying they will break, just raising the flag to proceed with caution. I would probably give the pin through the buffer tube a shot.....you're correct that its most likely to much pressure but about the only thing that should wear out would be the $20 buffer tube. I would NOT try it with any centerfire rifle round though. |
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No excess loads. With carrier motion arrested by lock pin, bolt head is locked in barrel extension. all pressure is contained in normal fashion, by brass cartridge case in chamber, breach bolt is not free to move rearward until rotated out of engagement with locking lugs. No locking lugs on 9mm but correct on 223etc....I hadn't thought of that! Disregard my above post about no go on rifles. |
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If you go the drilled and pinned buffer tube route, wouldn't you essentially make it a single shot gun where you'd have to remove the pin in the buffer tube every time you want to cycle the rifle? Yes....its semi common with guys that run suppressed auto .22s and anything that you turn the gas off on. Basically makes an auto into a mag fed bolt gun. |
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Quoted: Quoted: If you go the drilled and pinned buffer tube route, wouldn't you essentially make it a single shot gun where you'd have to remove the pin in the buffer tube every time you want to cycle the rifle? Yes....its semi common with guys that run suppressed auto .22s and anything that you turn the gas off on. Basically makes an auto into a mag fed bolt gun. I get that it is like a bolt gun, but in this case, he'd have to remove the pin, cycle rifle, replace pin every time. That seems like it would suck horribly. |
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Quoted: OR in Europe where they cant have semi auto AR rifles so they make them a straight pull "bolt" action rifle with no gas tubeQuoted: If you go the drilled and pinned buffer tube route, wouldn't you essentially make it a single shot gun where you'd have to remove the pin in the buffer tube every time you want to cycle the rifle? Yes....its semi common with guys that run suppressed auto .22s and anything that you turn the gas off on. Basically makes an auto into a mag fed bolt gun.  |
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Quoted: Quoted: If you go the drilled and pinned buffer tube route, wouldn't you essentially make it a single shot gun where you'd have to remove the pin in the buffer tube every time you want to cycle the rifle? Yes....its semi common with guys that run suppressed auto .22s and anything that you turn the gas off on. Basically makes an auto into a mag fed bolt gun. Understood, but I'm (and I assume Andielouroo) are getting hung up on the fact that its not just turning the gas off and having to cycle the gun with the charging handle; you would have to remove the pin before you could cycle anything. Or am I missing something? |
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Quoted: Quoted: Quoted: If you go the drilled and pinned buffer tube route, wouldn't you essentially make it a single shot gun where you'd have to remove the pin in the buffer tube every time you want to cycle the rifle? Yes....its semi common with guys that run suppressed auto .22s and anything that you turn the gas off on. Basically makes an auto into a mag fed bolt gun. I get that it is like a bolt gun, but in this case, he'd have to remove the pin, cycle rifle, replace pin every time. That seems like it would suck horribly. See the part in red. |
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If you go the drilled and pinned buffer tube route, wouldn't you essentially make it a single shot gun where you'd have to remove the pin in the buffer tube every time you want to cycle the rifle? Yes....its semi common with guys that run suppressed auto .22s and anything that you turn the gas off on. Basically makes an auto into a mag fed bolt gun. I get that it is like a bolt gun, but in this case, he'd have to remove the pin, cycle rifle, replace pin every time. That seems like it would suck horribly. Hence my resistance to go that method. |
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You could try having a gunsmith drill and tap the bolt next to the aft most point of the ejection port.
Then screw in a threaded knob. When the bolt cycles, the knob will restrict movement as it bumps up against the upper receiver's ejection port rearend. It would sort of look like a side charging AR15. The gas is trapped and will exit out the suppressor + there will be no action noice. For normal operation, simply unscrew the knob and you are GTG. |
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Ok, here's how I would do it if I was going to take the time to make a product to sell. If someone jacks my idea then I expect to be paid in ammo.
I'd make a side charger upper, make the charging handle have 2 different radiuses, smallest radius slides in the groove, second radius locks into the larger hole milled at the front of the groove so that you could pull it out slightly and lock the bolt into place using that. Would have to work out a mechanism to keep from pulling the handle all the way out but thats just how I would do it off the top of my head. If I get borred and have free time I may make one just to see how it works. T |
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Quoted: Ok, here's how I would do it if I was going to take the time to make a product to sell. If someone jacks my idea then I expect to be paid in ammo. I'd make a side charger upper, make the charging handle have 2 different radiuses, smallest radius slides in the groove, second radius locks into the larger hole milled at the front of the groove so that you could pull it out slightly and lock the bolt into place using that. Would have to work out a mechanism to keep from pulling the handle all the way out but thats just how I would do it off the top of my head. If I get borred and have free time I may make one just to see how it works. T Good idea. You could even make it function similar to the charging handle where you have to simply depress a small button/lever on the side charging handle in order to move the charging handle out enough to disengage the receiver slot and be able to charge the rifle. |
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What's rules out the adjustable gas block? I can shut the gas off with a Allen key in about a minute with mine. I wouldn't recommend putting something solid behind the carrier to keep it from moving while the gas port is still open. Your parts are not designed for that load. Ummmm....9mm blow back Eta: 2 seconds! Damn slow phone!!! I was not aware of that. The part about the components not being designed for those loads still stands. I'm not saying they will break, just raising the flag to proceed with caution. I would probably give the pin through the buffer tube a shot.....you're correct that its most likely to much pressure but about the only thing that should wear out would be the $20 buffer tube. I would NOT try it with any centerfire rifle round though. It would be fine on the 5.56mm as long as it froze the bolt carrier so that the bolt can't rotate. The carrier would not have any more stress than that of recoil. The lugs secure the bolt to the barrel extension. |
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Ok, here's how I would do it if I was going to take the time to make a product to sell. If someone jacks my idea then I expect to be paid in ammo. I'd make a side charger upper, make the charging handle have 2 different radiuses, smallest radius slides in the groove, second radius locks into the larger hole milled at the front of the groove so that you could pull it out slightly and lock the bolt into place using that. Would have to work out a mechanism to keep from pulling the handle all the way out but thats just how I would do it off the top of my head. If I get borred and have free time I may make one just to see how it works. T Good idea. You could even make it function similar to the charging handle where you have to simply depress a small button/lever on the side charging handle in order to move the charging handle out enough to disengage the receiver slot and be able to charge the rifle. Yea, usually I would build a prototype to test it for function and then after I proved function I would refine it some into a product with additional features that could be added to it. T |
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If you wanted a quiet subgun, you should have purchased something else. The AR is quiet, but the HKSD was quieter, to me. I already have one. It's nearly impossible to find a bolt, pump, lever action 9mm. I thought it may be easier to mod the AR as a reasonable alternative. |
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If you go the drilled and pinned buffer tube route, wouldn't you essentially make it a single shot gun where you'd have to remove the pin in the buffer tube every time you want to cycle the rifle? Yes....its semi common with guys that run suppressed auto .22s and anything that you turn the gas off on. Basically makes an auto into a mag fed bolt gun. I get that it is like a bolt gun, but in this case, he'd have to remove the pin, cycle rifle, replace pin every time. That seems like it would suck horribly. Or pop the take down pin and cock the hammer by hand. |