Subsonic Ammo Turning Supersonic

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tulsacrittergetter

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Man I believe that is the same exact barrel I have on my blackout. The important thing is that it has a .125 gas hole. Get an adjustable gas block to go with it. Not absolutely necessary but for $35 at Joe Bobs it is nice to be able to turn the gas down for supers. I have less than 10 rounds down mine so far, which is way lower than normal, and I only shot one 3 round group with it but it was around 3/4 inch or less. Its already accounted for several pigs though.

I run adjustable gas blocks on all of my AR's, but I get mine from MidAmerica Armament, which is an Oklahoma based company. Their adj. gas blocks are also under $40 and work great.
 

tulsacrittergetter

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In my opinion, they are excellent gas blocks. I first saw MAA's adjustable gas block at last year's Wanenmacher's gun show here in Tulsa. I recognized their quick-release handguards because I almost purchased one for an AR pistol I wanted to build, and then my eye caught a huge tub of adjustable gas blocks with a price tag of $30. I couldn't believe how cheap they were! I bought a handful, went home, and put them on all of my AR's. I've never had a problem with any of them. They all work fantastic! The only other adjustable gas block I've used is a JP Enterprises JPGS-5S gas block (pictured below) because it has the clamp-style fasteners which is what I wanted to start using because I had a bad experience with my first AR-15 build when I couldn't get the gas block off of the barrel because the ding dong that built the upper I purchased over-torqued the screws and I had to cut the damn thing off with a Dremel. The JP Enterprises JPGS-5S turned out being too tall so I had to put it on my DPMS / AR-10 .308 build. After that, I just kinda stayed devoted to MMA's adjustable gas block.

MAA is a great company, and I try to buy from them when I can. I just checked their website, and their adjustable gas blocks are currently on sale for $24.50. That's pretty good!

p-29188-maa-gb008-blk.png


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