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Posted: 8/18/2014 7:27:18 PM EDT
Almost finished with my build. Just waiting on a part from the cerakoter. I'm trying to get light, but have run over budget. Is it possible to just remove weights from the buffer, since a JP low mass carrier will have to wait for awhile. My reasoning is the buffer and carrier basically become one during operation, with the buffer spring keeping the two pressed together. If I may remove weight, how much may I reduce the buffer . I am running a SLR Sentry 6 for a gas block.
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you can. you *MAY* want an adjustable gas block if you don't already have one though. if it's slightly overgassed, you won't really notice it much with a standard buffer. you will if/when you remove the weights.
but yes, it can be done. highly recommend adjustable gas though. |
| Yes, I have a SLR adjustable. I have assembled several lowers before, but this is my first for assembling an upper. Any recommendations on what to look for when shooting. I have already adjusted for a standard carbine buffer weight, and just getting a little nervous. Thanks for your reply. Should have added, when going lighter, do you go more or less gas? |
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same as any overgassing situation--forward ejection, not picking up rounds (because the BCG is moving too fast), "hard" recoil (obviously with .223 it's relative) or just pull the buffer after a few rounds and see if you notice any signs of damage to the rubber tip....that sorta thing.
as long as it's feeding/ejecting well and locking back on the last round, that's basically as far open as you need the gas to be. if you're shooting lighter loads, you may want to close it a click or two before shooting something like 855 etc. |
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Quoted:
same as any overgassing situation--forward ejection, not picking up rounds (because the BCG is moving too fast), "hard" recoil (obviously with .223 it's relative) or just pull the buffer after a few rounds and see if you notice any signs of damage to the rubber tip....that sorta thing. as long as it's feeding/ejecting well and locking back on the last round, that's basically as far open as you need the gas to be. if you're shooting lighter loads, you may want to close it a click or two before shooting something like 855 etc. Myth, the M231 firing port weapon has a cyclic rate of almost 1,400 rounds per minute. If your magazine is in spec, it will pick up the rounds. |
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Myth, the M231 firing port weapon has a cyclic rate of almost 1,400 rounds per minute. If your magazine is in spec, it will pick up the rounds. Quoted:
Quoted:
same as any overgassing situation--forward ejection, not picking up rounds (because the BCG is moving too fast), "hard" recoil (obviously with .223 it's relative) or just pull the buffer after a few rounds and see if you notice any signs of damage to the rubber tip....that sorta thing. as long as it's feeding/ejecting well and locking back on the last round, that's basically as far open as you need the gas to be. if you're shooting lighter loads, you may want to close it a click or two before shooting something like 855 etc. Myth, the M231 firing port weapon has a cyclic rate of almost 1,400 rounds per minute. If your magazine is in spec, it will pick up the rounds. Thanks for calling me a liar and/or idiot knowng nothing about me. Nevermind the fact I've seen this "myth" happen with NIW pmags and brownells gi mags alike, and slowing it down with a heavier buffer and stiffer spring cured it instantly. I'm glad you know the cyclic rate of some random obscure variant and I'm sure the author of its Wikipedia entry is flattered. But it doesn't change the fact that what you claim as a myth because of something you read on the internet is just a chance for you to create some sort of dogpile when the fact is, numerous very skilled gunsmiths have demonstrated exactly what you claim to be a myth. Prolly just magic eh? 
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Quoted:
Thanks for calling me a liar and/or idiot knowng nothing about me. Nevermind the fact I've seen this "myth" happen with NIW pmags and brownells gi mags alike, and slowing it down with a heavier buffer and stiffer spring cured it instantly. I'm glad you know the cyclic rate of some random obscure variant and I'm sure the author of its Wikipedia entry is flattered. But it doesn't change the fact that what you claim as a myth because of something you read on the internet is just a chance for you to create some sort of dogpile when the fact is, numerous very skilled gunsmiths have demonstrated exactly what you claim to be a myth. Prolly just magic eh? Quoted:
Quoted:
Quoted:
same as any overgassing situation--forward ejection, not picking up rounds (because the BCG is moving too fast), "hard" recoil (obviously with .223 it's relative) or just pull the buffer after a few rounds and see if you notice any signs of damage to the rubber tip....that sorta thing. as long as it's feeding/ejecting well and locking back on the last round, that's basically as far open as you need the gas to be. if you're shooting lighter loads, you may want to close it a click or two before shooting something like 855 etc. Myth, the M231 firing port weapon has a cyclic rate of almost 1,400 rounds per minute. If your magazine is in spec, it will pick up the rounds. Thanks for calling me a liar and/or idiot knowng nothing about me. Nevermind the fact I've seen this "myth" happen with NIW pmags and brownells gi mags alike, and slowing it down with a heavier buffer and stiffer spring cured it instantly. I'm glad you know the cyclic rate of some random obscure variant and I'm sure the author of its Wikipedia entry is flattered. But it doesn't change the fact that what you claim as a myth because of something you read on the internet is just a chance for you to create some sort of dogpile when the fact is, numerous very skilled gunsmiths have demonstrated exactly what you claim to be a myth. Prolly just magic eh? Who called you a "Liar"? But wrong is WRONG! I'm running a J.P. Enterprises LMOS carrier in Three AR's without an adjustable gas system and I'm running a Smith Enterprises Aluminum carrier in one gun without an adjustable gas system. I think I have more than a little experience on this subject. Considering I've ran an M-16 at 1,400 rounds per minute I KNOW it's a myth. Also, I was a Class III Dealer for quite a few years and fired a "few" magazines through a factory Colt M231 at Knob Creek. Smith Enterprises marketed an aluminum bolt carrier for jumping the cyclic rate to 1,400 r.p.m. This is a picture of it... 
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Quoted: Considering I've ran an M-16 at 1,400 rounds per minute I KNOW it's a myth. Smith Enterprises marketed an aluminum bolt carrier for jumping the cyclic rate to 1,400 r.p.m. This is a picture of it... http://i135.photobucket.com/albums/q125/PursuitSS/Bolt%20Carriers/1eab64e4cdaaf36c4ddaffd057acb7b7.jpg Quoted: Quoted: Quoted: Quoted: same as any overgassing situation--forward ejection, not picking up rounds (because the BCG is moving too fast), "hard" recoil (obviously with .223 it's relative) or just pull the buffer after a few rounds and see if you notice any signs of damage to the rubber tip....that sorta thing. as long as it's feeding/ejecting well and locking back on the last round, that's basically as far open as you need the gas to be. if you're shooting lighter loads, you may want to close it a click or two before shooting something like 855 etc. Myth, the M231 firing port weapon has a cyclic rate of almost 1,400 rounds per minute. If your magazine is in spec, it will pick up the rounds. Thanks for calling me a liar and/or idiot knowng nothing about me. Nevermind the fact I've seen this "myth" happen with NIW pmags and brownells gi mags alike, and slowing it down with a heavier buffer and stiffer spring cured it instantly. I'm glad you know the cyclic rate of some random obscure variant and I'm sure the author of its Wikipedia entry is flattered. But it doesn't change the fact that what you claim as a myth because of something you read on the internet is just a chance for you to create some sort of dogpile when the fact is, numerous very skilled gunsmiths have demonstrated exactly what you claim to be a myth. Prolly just magic eh? Considering I've ran an M-16 at 1,400 rounds per minute I KNOW it's a myth. Smith Enterprises marketed an aluminum bolt carrier for jumping the cyclic rate to 1,400 r.p.m. This is a picture of it... http://i135.photobucket.com/albums/q125/PursuitSS/Bolt%20Carriers/1eab64e4cdaaf36c4ddaffd057acb7b7.jpg |
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