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Posted: 1/30/2013 5:38:33 PM EDT
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This is my first AR. I received my PSA MOE Lower Build Kit yesterday and put it together tonight with some help from a more experienced friend. It seemed to go together fairly easy until I put the buffer tube assembly in the stock. It is extremely tight and I can barely move it. I read something about a mil vs. commercial stock but don't know if this is the problem. It seems to work correctly if I put extreme force into it but I figure that is not normal.
This is the kit that I purchased. http://palmettostatearmory.com/index.php/ar-15-05/lower-parts/build-kits/moe-lower-build-kit.html PSA MOE Lower Build Kit Any thoughts on what I can or should do. All help is appreciated. Thanks. |
| Check the PSA industry page. There are more people with complaints like yours. they might have some info in their threads over there. I have my build kit I got a couple days ago after waiting almost a month and I have not put it together yet. But all this fitment trouble talk has me concerned |
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The buffer tube assembly is tight into the stock. I can't move the stock back and forth freely. I have a collapsible stock that does not collapse (or extend for that matter).
It is an Essential Arms AR-15 Lower. I had zero problems with everything else and it went together extremely easy. I'll check their page. Thanks. |
| I just put my first lower together tonight with a psa Moe build kit and the stock was a tight fit. At first it would only go on one notch or so. So then instead of using the lever on the stock I pulled down near the pin that goes across which is actuated by the lever. This allowed the catch pin inside the stock a bit more and the stock slid right on. |
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I have had a tight fit with the buffer tube and butt stock in the past. Take a q-tip, soak the end in CLP or your favorite lubricant, and give the buffer tube a good rub. By no means should it be dripping - you should merely note the presence of lubricant on the tube.
My experience has been that the butt stock moves much more freely afterwards and the sticking goes away. YMMV. |
| I got a PSA milspec buffer tube to replace a damaged commercial tube. I'd read that milspec tubes were smaller than commercial and would cause some slop in the stock as a result. I figured I'd just deal with it until I get around to replacing the stock. To my surprise, it was exceptionally tight. Maybe I had a commercial tube and milspec stock originally. Either way, it loosened up with a little lube. |
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Different stock, but similar issue. i bought a used B5 Sopmod and the fit was VERY tight. I took a half round file and filed the inside of the stock a little at a time until it fit snug.
Honestly the MOE does not have the friction lock. If I had one I would be pleased as hell that it was tight and I would use a file, rasp, or dowel rod with sand paper wrapped around it to remove AS LITTLE as possible to get a snug fit. That would be like getting the secure non rattle of the CTR at the price of a MOE. |
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Quoted:
I just put my first lower together tonight with a psa Moe build kit and the stock was a tight fit. At first it would only go on one notch or so. So then instead of using the lever on the stock I pulled down near the pin that goes across which is actuated by the lever. This allowed the catch pin inside the stock a bit more and the stock slid right on. You do have to pull that pin to get the stock onto the tube itself. Is that the issue OP? |
| I had the exact same issue last week. I put Rem-oil on the threads and a strap wrench on the receiver extension (buffer tube). Actually used 2 strap wrenches. One in either direction. I would tighten a quarter turn, then back off a quarter turn, then tighten a half turn, then back off some, etc. As I tightened, I would then back off a bit. I only needed to go about a turn and a half further after it got real tight until I captured the buffer retaining pin. It was much tighter than any I have done before, but it worked. Good luck. |
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