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Old September 16, 2017, 04:48 PM   #1
lokidansk
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8.5 inch AR

Just bought a 8.5" PSA 5.56 upper with pistol gas sys. Need suggestions on buffer weight.
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Old September 16, 2017, 09:07 PM   #2
Ibmikey
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I use an H2 with my 8.5" 300 Blackout pistol and it runs like a sewing machine ( only a lot louder).
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Old September 17, 2017, 07:40 AM   #3
Nanuk
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I have a 5.56 10.5" upper with carbine gas and a 300 BLK 7.5" upper with pistol gas. Both run flawlessly with either a carbine buffer or H2 buffer. The pistol gas will make it more reliable with such a short BBL.
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Old September 17, 2017, 04:47 PM   #4
lokidansk
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I have 10.5s in 5.56 with carbine gas sys, they run flawlessly. the 8.5 in 5.56 is pistol gas and I've heard they are finiky. really hopeing for a few suggestions on 5.56 with 8.5" barrel. thanks for the input guys !!!
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