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Posted: 6/3/2010 12:41:34 PM EDT
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Hey all,
This is my first serious post on this forum. I just got my upper today... and there is a minor hiccup (I know it can be solved). The upper drops on perfectly without my collapsible stock, no downward pressure needed. Pins go in great that way, However, I am having issues getting my stock tube placed just right. No matter where I start it, it always seems to over protrude in the receiver just a hair. It creates a slight gap (we're talking tiny, can see light, not sure how wide), and I have to put the pistol grip on the floor in order to put the pin through. Do I fiddle with the buttstock tube in order to get it "just right"? Do I need to file part of the tube to remove the excess protrusion? Do I even need to worry about it? I am glad the receivers fit tight, Just wondering if it is "too tight"? |
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do you have the buffer tube installed correctly?
does it look like this? http://www.kevinholman.com/byor/lower/bufferpin2.jpg [pic borrowed from build you own thread stickied in this forum] |
Problem has been fixed with a new buffer tube (Rock River). Now it drops in no sweat. There is some play between the upper and lower. I know this is common, and does not affect practical accuracy. I might use an accu-wedge, but understand that it isn't necessary. I will probably want to upgrade my stock at some point, as I got a 6 position tube vs. the older 4 position... so in the shortest position (which I will never use), the tube sticks out the back a little. There are some pretty nice pieces out there... just a matter of figuring out which one I want to use, and save the cash to buy it (can do it in a few weeks)...but for right now, it'll do. 
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Oh, in case anyone is wondering what I built with"
Spike's Tactical M4 style upper (I am sure most of you guys know the specs on this one) Aero Precision assembled lower sans buttstock No name buttstock No name spring No name carry handle/sight Spike's heavy Tungsten buffer Rock River Arms 6 position buffer tube The "no name" parts were acquired in a trade, and I figured they would work in a pinch. Buttstock isn't the greatest, but the RRA tube went in perfectly. From what I can tell the Aero is a decent lower, and Spike's seems to be making a good name for itself. That being said, I do not know much about AR 15s yet, as this is my first foray into the model. All I can say is the machining looks good on the lower, no out of round holes, and all the parts that I actually paid money for seem to be as advertised. Thing is, I know what the issue was with the tube, I figured that since I had a few bucks to spare, I'd just as soon replace it, as futz around with one that is "iffy." On the plus side, these rifles seem very modular... so as I can afford to, I can swap that buttstock out for a nicer one. I like some of the RRA stuff, so, I'll likely end up with one of their stocks. I have no issues with the Spike's carbine handguard. Itching to get out and shoot it, but I am lacking in ammo quantity.
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This is what the old buffer tube looked like before I swapped it out for the RRA buffer tube:
http://i42.photobucket.com/albums/e333/shoggoth80/102_0020.jpg Not the best pic, but it shows the slight protruding that concerned me. The RRA dropped in, fit fine, and everything closes up real easy. |
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Ok, so I have added to the build up. The receiver is no longer a super tight fit, as I changed tubes. I took off the beater carry handle, and cheapie stock, and have put some Magpul kit in their places. So I have a Magpul BUIS, and a CTR stock. About the only thing I would do to it at this point is add a red dot sight. Feeling pretty good about it overall.
If I can, I'll actually get some current pics of it, as the older pics like like crap, where the new set up looks nice.... and more importantly FEELS nice. The larger stock helps me, being used to larger rifles...sits in the pocket nice and tight, but still comfy. |
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