Black River Tactical
BRT OPTIMUM Hammer Forged Chrome Lined Barrels - 11.5", 12.5", 14.5", 16"
BRT EZTUNE Preset Gas Tubes - PISTOL, CAR, MID, RIFLE
BRT Bolt Carrier Groups M4A1, M16 CHROME
BRT Covert Comps 5.56, 6X, 7.62
I might have to take off my gas block to check, but I don't have any pin gauges. If it's a 0.076" gas port, that seems like a recent change, but even so it's still something like an informal midlength "standard" for 16" barrel. That's what just about every high end manufacturer use, like Sionics, BCM, Criterion, SOLGW, etc. The only major manufacturers that went smaller were DD with 0.073" and Colt with 0.071".
Im well aware of that. Im also aware that when the M4A1 had govt profile barrels, before we got upgraded to the newer heavier type, it came with H buffers. Would anybody care to guess which profile the DD V9 has?
Edit: the assholeness of this post was completely unintentional. I would make an awful diplomat.
Last edited by 1168; 08-09-21 at 04:07.
I forgot to mention the type of muzzle device in the sum of parts.
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After testing different carbine buffers with 5.56 ammo in an 11.5 AR upper with an adjustable gas block, I found the H2 has softer recoil than the lighter buffers. I also found that the carbine, H and H2 buffers required the same gas setting for full lock back. As it has been commonly accepted that heavier buffer weights required larger gas ports, this came as a complete surprise.
Last edited by MistWolf; 08-09-21 at 10:06.
The number of folks on my Full Of Shit list grows everyday
I am American
I think there’s a range of weight that the gas drive works with.
Too light, and there’s not enough mass to retain enough momentum for the everything to fully cycle.
Too heavy and you have the same problem.
H2 and A5-2 seem to be the almost universal sweet spot.
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