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Posted: 5/15/2023 2:05:55 PM EDT
[#1]
Quoted: I have a higher end skeleton bcg I got years ago and just never finished the light weight build. This weekend I put the BCG in a rifle I knew worked just for the hell of it and it would not run. I put two other bcgs in and it ran fine. (Carbine, all factory stuff). So if I decided to use this BCG, do I increase or lower the buffer/spring weight? Turn down the gas and run a lighter spring. You're probably outrunning the magazine. |
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Posted: 5/15/2023 2:08:23 PM EDT
[#2]
Quote HistoryQuoted: Turn down the gas and run a lighter spring. You're probably outrunning the magazine. |
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Posted: 5/15/2023 2:24:28 PM EDT
[#3]
There’s not much point if you’re not using adjustable gas. To do so without adjustable gas would likely see you needing to add buffer weight, negating the whole point of the LW BC in the first place.
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Posted: 5/15/2023 2:24:48 PM EDT
[#4]
Quote HistoryQuoted: Turn down the gas and run a lighter spring. You're probably outrunning the magazine. Quote HistoryQuoted: Quoted: I have a higher end skeleton bcg I got years ago and just never finished the light weight build. This weekend I put the BCG in a rifle I knew worked just for the hell of it and it would not run. I put two other bcgs in and it ran fine. (Carbine, all factory stuff). So if I decided to use this BCG, do I increase or lower the buffer/spring weight? Turn down the gas and run a lighter spring. You're probably outrunning the magazine. This. |
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Posted: 5/15/2023 2:28:48 PM EDT
[#5]
Quote HistoryQuoted: There's zero point if you're not using adjustable gas. |
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Posted: 5/15/2023 2:32:28 PM EDT
[#6]
Quote HistoryQuoted: It is just sitting in a bin and I have another ar I just made that needs a bcg and I don't feel like creating a WTT ad and going to the post office. I just want to use it and it be reliable. I would assume have a cheap tool craft. I do however also have an adjustable gas block I could use. Quote HistoryQuoted: Quoted: There's zero point if you're not using adjustable gas. Adjustable gas will make it work. I will caveat that decreasing reciprocating weight will shrink the operating envelope in adverse conditions. I use one in a precision bench gun where absolute recoil reduction is a primary factor. I would not use one in something that absolutely needed to function regardless of conditions. Less mass equals more sluggish operation in cold and/or dirty conditions and you will start seeing malfunctions due to that earlier than you would with standard components. |
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Posted: 5/15/2023 2:38:30 PM EDT
[#7]
Quote HistoryQuoted: Adjustable gas will make it work. I will caveat that decreasing reciprocating weight will shrink the operating envelope in adverse conditions. I use one in a precision bench gun where absolute recoil reduction is a primary factor. I would not use one in something that absolutely needed to function regardless of conditions. Less mass equals more sluggish operation in cold and/or dirty conditions and you will start seeing malfunctions due to that earlier than you would with standard components. |
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Posted: 5/15/2023 2:42:11 PM EDT
[#8]
Quote HistoryQuoted: Adjustable gas will make it work. I will caveat that decreasing reciprocating weight will shrink the operating envelope in adverse conditions. I use one in a precision bench gun where absolute recoil reduction is a primary factor. I would not use one in something that absolutely needed to function regardless of conditions. Less mass equals more sluggish operation in cold and/or dirty conditions and you will start seeing malfunctions due to that earlier than you would with standard components. All of this. Put the adjustable gas block on it and a light spring and buffer. Then tune the gas for reliable function. It should be a sweet, soft shooter. Not the best end of days, war fighter gun though. |
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Posted: 5/17/2023 12:01:39 AM EDT
[#9]
I've built a handful of ARs with LW BCGs and I have found a lot of success with rifle and intermediate gas length barrels.
My first 20" with a Faxon gunner barrel had a Voodoo Low Mass carrier and it shot nearly as smoothly as a KAC 16" I had. My most recent assemblage used a fluted BA 18" SS barrel with rifle gas port and a Young manufacturing LW carrier. I have not adjusted the gas block at all on that gun. |
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Posted: 5/25/2023 11:02:32 AM EDT
[#10]
Quote HistoryQuoted: Turn down the gas and run a lighter spring. You're probably outrunning the magazine. MYTH!!! Long proven wrong!! I had an M-16A1 with an Aluminum bolt carrier, it ran 1,400 rpm The M231 runs at 1,225 rpm |
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