View Full Version : for all you AR-15 assembler experts...

11-29-2011, 7:59 PM
so this is my first AR build, and i got my lower (aero precision) and LPK (DPMS) today so i put it together. everything went smooth with the exception of nicking a part of the lower due to my punch slipping. no biggie haha

but when it came to installing the buffer tube, and i know im gonna get **** for this, (UTG commercial 6 position stock i believe) it threads on just fine, but there is a good amount of play until i tighten the castle nut down.

is this normal? i mean the only reason why i went with UTG in the first place was i had a friend with the same lower use this kit and it functioned just fine. (he might have gotten the usa built one or something i don't know)

i understand the castle nut will eliminate this play but it just doesn't feel right that the buffer tube has play in the first place. my next step is gonna be getting a quality commercial buffer tube and hopefully i can reuse the spring and stock on it, but i just wanted to get real feedback before i did this...

11-29-2011, 8:04 PM
That's the difference. Politely. Utg. You know it.

Now you see it.

Please sell it and get the proper part?

No sarcasm, not an expert, but you just said it is not a good fit.

There was an awesome thread awhile back regarding this very issue ans commercial vs mil spec receiver extensions... Maybe someone can bring it up? It was hotly debated, and sincerely quite indepth with everything you ever wanted to know about them

11-29-2011, 8:08 PM
the threads are shorter then the threads in the lower, so thats why its loose until you tighten the nut. Save up and get a Mil-spec kit.


11-29-2011, 8:15 PM
I have 2 aero lowers and they are milspec.

11-29-2011, 8:16 PM
thanks, i'll just do this right and get rid of the UTG and get a quality milspec.

11-29-2011, 8:23 PM
I have this stock kit. I purchased it cause he stated it was USA made. Idk but I ordered the milspec one and it fit perfect. But its a utg.

But I was going to drill and pin it for a featureless set up so no big deal. Works and holds up fine. Here it is with my new PSA upper.
http://i1213.photobucket.com/albums/cc479/msand951/374029_166256003472926_100002655823624_262744_1925 54839_n.jpg

11-29-2011, 8:30 PM
It's marked on stock MADE IN THE USA! Where is it made? I mean where?

11-29-2011, 8:40 PM
It's marked on stock MADE IN THE USA! Where is it made? I mean where?

It is marked made in the USA ,right in front of the stock on the tube .The little white letters on the pic. Before I pinned it I made sure I wouldn't block any of that. Im hoping it is but im in doubt cause there is a lot of chinese crap with that on it. I hope its not the case with this, but works pretty good. Seems pretty solid .

11-29-2011, 8:43 PM

does this seem too good to be true? haha im tempted, but im leaning towards purchasing one from a local store so that i can actually look at the product and maybe test fit it or something. im tired of this ordering crap, waiting and dissappointment right after haha

11-29-2011, 8:52 PM
As long as its a milspec you should be fine . That looks pretty good and its a magpul.

I helped my brother in law install the $49 dollar one from psa and it fit fine.

11-29-2011, 8:59 PM
I don't know why anyone buys commercial stocks or buffer tubes any more. All new stocks are made to fit mil-spec and if they are popular enough it gets copied to commercial. If everyone sold mil-spec only we wouldn't have people who buy commercial and then have to swap out a buffer tube when they want to upgrade their stock.

For mil-spec carbine buffer tubes I trust Vltor, PWS and Colt. DPMS and Armalite are probably fine. Rock River, Bushmaster and maybe DSA have been around long enough, they are a good bet too.

It's just the no-names and companies that are famous for Airsoft quality (ATI, UTG, etc.) that you have to watch out for.

11-29-2011, 8:59 PM
cool i'll look into that, don't really want magpul anyways lol just the standard looking collapsable stock

11-29-2011, 9:16 PM
The palmetto $49. is pretty solid. And installed on a aero. The ones Wash mentioned are gtg too.

11-29-2011, 9:51 PM
The palmetto $49. is pretty solid. And installed on a aero. The ones Wash mentioned are gtg too.

i just ordered the PSA kit...all the local stores in my area mostly stock commercial so i opted for this..thanks for the link and thanks to everyone else for convincing me to go milspec. i learned some good points

11-29-2011, 11:09 PM
I'm not sure why companies even bother with commercial.