Talk about Capitals hockey & more! > General Discusion Anything But Hockey
Guns and Blowin Shit Up!
alta:
The buffer tube length and the gas system length operate independently of each other. Any imaginable combination of the two can used successfully/reliably together. But, the longer lenghts will give softer recoil impulses. That's one of the reasons why mid lenght gas and the A5 buffer tube have become popular on the 14.5"-16" carbine type rifles. They also extend service life of the internals, but that isn't something you'd notice unless you are shooting 1000 rounds a month.
One thing you need to watch with the carbine lenght buffer tubes, and the stocks that fit them, is whether or not it's a commercial spec or mil spec tube. The commercial spec tube has a larger outside diameter which requires a bigger hole in the stock. It's only a .003" difference, but it's enough to require different stocks. So a commercial carbine stock will fit on a mil spec tube, but it's loose as shit. There are some stocks that have a tighter fit than others, and some have a second lever on them to take that slack out, like a magpul STR.
The ideal buffer weight is one that locks the bolt back on an empty mag every time while shooting your lowest powered ammo. If the buffer is a little too heavy, it may function fine but not lock the bolt back.
The general consensus is, for an AR with carbine or mid lenght gas firing full power ammo, an H1 or H2 buffer is close to ideal. A carbine H1 buffer weighs about 3.7 ounces. An H2 buffer weighs about 4.6 ounces. Spikes used to make a T2 buffer that weighed about 4 ounces, not sure it they still do. Sounds like you are trying make to ammo that's not as hot, so an H buffer might be fine.
In my ARs, I always use ammo that's towards the top of the power scale, I don't have any lower powered range ammo for them. So I tend to have buffers on the upper end of the scale.
could add more, but time to make dinner
richkrt99:
All my extensions are Mil-spec. I did check that before beginning.
I have the "light" buffer kit with several weights. Only tried the 2.2oz so far. I have the 1.7oz I have not tried yet.
Also considered a low mass BCG, but did not really want spend more or "build" a gun around the ammo. May yet though- I am inventorying my parts and probably have enough extra to assemble another one - beyond the three I plan to build with/for my three boys. I have a very anal spreadsheet with all the parts and the intended builds they are for.
Trying not to go bonkers with too much building (um.....too late) Every time stuff would go on big sale, I kept buying it so I have accumulated quite a few parts. Got some AERO Precision stuff about 1/2 off on sale.
Oh, and that AR-Stoner mag I have for the 7.62x39 that works really well....is made by ASC. Saw ASC stamped on the follower. Now we now why it works. The others (couple ASC, couple Duramag) did come in but haven't tried them yet.
alta:
A low mass bolt carrier requires a different setup. I've read of people using them, but have never seen one in real life. Not sure what the purpose of them is.
Having spare parts for these things isn't a bad idea. I've acquired a bunch as well.
richkrt99:
Put my "new" lower together for my "AR47". (already had the upper done and tested on another lower)
Aero lower....I dropped one of the detent pins (the rear one actually) when installing...could not find it. Borrowed one from another kit until I get the spares. :-\
Aero M4E1 upper with Aero Atlas-1 MLOK handguard. (Like this handguard but it was probably most expensive part of the rifle.)
AR Stoner heavy contour barrel, AR Stoner BCG, 3/4" gas block, mid length tube, Hogue stock. (like this stock - have it on three guns now)
Threw a Strike Industries RED charging handle on it to remind all this is NOT a .223 rifle
Duramag and ASC magazines arrived. So far, ALL function flawlessly. Put 100 rounds through it yesterday with 4 different mags, both steel cased and some Yugo brass cased. Nary an issue.
Pretty happy with it. Shoots pretty nice. Definitely rocks the steel a little harder than the .223
Added a slightly upgraded Rise Armament Rave trigger (single stage, 3.5lb) which is nice and crisp, short pull.
Threw in the Armaspec Stealth recoil spring (I had one already) which is nice but not necessary.
Don't have enough distance to test any accuracy at my place, but didn't build this one for anything but short distances anyway.
The ODG handle is temporary - waiting on the FDE hand grip. Also waiting on the muzzle brake (Witt Machine)
I am happier with this than a "conventional" AK. Pretty satisfied with how it shoots so far. I bought pretty much everything "on-sale" (except the handguard) and with upgraded trigger and stealth recoil spring I'm at right about $900 including the brake and grip not yet here. (although I did not include cost of sights - Magpul flip up, which I "borrowed" from another upper kit yet to be assembled)
Fun times :)
Caps17201:
Very nice rifle, do you hunt with it or just target and the range? Perhaps home defense?
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