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Question: For a 16" carbine gas length, Would a heavier buffer, heavier spring, or ..? (Page 2 of 2)
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Nov 2022
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OH, USA
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Originally Posted By MS556: Sorry for the very tardy response. I pay no attention to ejection pattern. This build is primarily for precision shooting from bench. It reliably ejects these loads. I usually have a bag attached to the ejection port that catches the cases. These are pricey Lapua Match cases. I hand load, so I don't want to lose them or mix them up. I have fired full power 5.56 77gr OEM handloads. It cycles them reliably, a bit on the "snappy" side. Again, ejection pattern is not important. Reliability is. Thanks for the info. I'm still learning. I've read a lot about the 16" with carbine gas length vs mid length. Some say the carbine will wear out components, like eat itself up because of overgassing. Another is always emphasizing ejection pattern, which I've learned is not the way to determine everything involved. I do believe starting with getting the gas right is where to begin fixing an oversized port. I like trying things out on this one to compare how smooth I can get it while maintaining most reliability. I'm not a high end consumer of investing in top tier ARs but I do like them. |
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Originally Posted By NTXGlocker: May I ask, why is it (BRT) the answer? When it adds more headache Originally Posted By NTXGlocker: Originally Posted By JoeDevola: a BRT reduced flow tube is the answer. May I ask, why is it (BRT) the answer? When it adds more headache Genuinely curious as to the added "headache " 
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For a 16" carbine gas system, the most effective way to manage recoil is usually by increasing the buffer weight rather than the spring tension. These systems tend to be overgassed, meaning the bolt moves faster than necessary. An H2 buffer provides enough mass to delay the bolt opening, which creates a smoother push instead of a sharp snap. While a heavier spring can slow down the rearward movement, it often slams the bolt forward too hard. This causes the muzzle to dip when the action closes, which makes it harder to keep your sights on target for follow-up shots. If the rifle is tuned perfectly with an adjustable gas block, a standard weight buffer and spring will technically offer the lowest total recoil impulse because there is less moving mass. However, for a standard setup without gas adjustment, the H2 buffer is the most reliable way to soften the cycle and reduce wear on the internal parts. |
Question: For a 16" carbine gas length, Would a heavier buffer, heavier spring, or ..? (Page 2 of 2)
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