ACM Magpul UBR Stock (Replica)
 

So, this is my first review on anything. I hope its somewhat decent. Anyways...

The Backstory
I wanted a UBR stock for my WE 416. (Thank Pimpmygun.com for that) As I wanted something more then the standard LE Carbine stock. Searching alot, finding Magpul PTS versions, which sell for about $150 and the RS about $250. Didn't like the price of either (being the azian I am) and did research on less expensive reps. Came across the ACM one, which people have said have a buffer tube that fits the WE stock threads. (WAHOO) That being the selling point I ordered one from Airsoftpartshop.ca Bigbuzz666 was kind enough to PM me when he had them in stock and about 10 minutes later it was paid for. And shipped later that day. (Awesome guy)

Unboxing
Shipped Xpresspost on Tuesday April 3rd, and arrived at my door today April 5th, I opened the box. First thing, it was wrapped in newpaper. (Not a problem, its a stock, not your grandma's china collection). WHICH WAS A FINISHED CROSSWORD. (You bastard :D)

In the box
ACM Magpul UBR stock in Black
GBBR Buffer tube
AEG Buffer tube
Bag of spare screws
Two cheek risers. (Fat and skinny)
Did not come with instructions but thats what Youtube is for
http://i1064.photobucket.com/albums/...k/IMAG0534.jpg

Installation
Follows the same installation as the RS one. The buffer tube screws in perfectly with the stock thread and the molded stop ring stops exactly with the retention button.
http://i1064.photobucket.com/albums/...k/IMAG0531.jpg

The buffer tube is longer then the stock WE one and washers will be required to stop the bolt carrier from getting stuck in the buffer tube!!!

I used 5/16" washers about 10 of them from Home Depot $1.10
http://i1064.photobucket.com/albums/...k/IMAG0535.jpg

Final Summation
If you're looking for a cheaper then real stock, but still think that $150 is a bit much for an airsoft version then the ACM is right up your alley - you cheap mofos :D

RS = $250
ACM = $60 + $1 in washers

http://i1064.photobucket.com/albums/...k/IMAG0536.jpg

http://i1064.photobucket.com/albums/...k/IMAG0537.jpg

how does it feel?
hows the finish?
Any wobble?

Sorry :S

No wobble. Its polymer plastic, same material that the WE G36 is made of. Changing positions, the lock is solid. Isn't going to change on me. All the quick detach points for sling mounts are ambidextrous, as well as the little compartment in the stock. Unfortunately I do not have the RS to compare the two.

I have 3, RS,ACM,and the PTS and that is the same order I rate them in for fit and function.

I have the same stock on my aeg and I love it. Is it as good as the real one, probably not. But it is very well made and I would not hesitate to recommend it to a friend. In fact, one of my friends is an armorer, when he saw mine he purchased one for his 22 rifle and it worked out very well:)

I have one too, also from Airsoftpartshop.

It's excellent for the price. I got mine in FDE and the color matches my realsteel MIADs better than a genuine non-PTS Magpul CTR (go figure).

For the spacers, the buffer tube on the UBR is exactly the same length as the WE and any RS buffer tube: you need to re-use the plastic/rubber spacer inside the WE's (or buy a spare one). It's in there snugly and you'll have to tap the buffer tube a few times to get it out (or pry it out with a small screwdriver from the rear).

I suppose the washers will do the job, but I don't know if that rubber spacer is supposed to absorb impact (it's that kind of material); using hard metal washers may result in damage in the long run.


Spacer in question:
http://www.evike.com/images/large/Parts_WE_GR_91_lg.jpg

I agree for the buffer spacer. It's not a coincidence if the spacer is made of hard rubber, and so does the head of the buffer itself.

I'm using a lipo in a peq box and a programmable board.

Depends on the size of the MOSFET. I have a ubr ptw, and I can fit a king arms 11.1 15c 1100mah lipo in with the (mini version) ptw MOSFET... Tight fit, but it works.

Awesome! Thanks Drake.

so i bought the Magpul PTS UBR stock off of Airsoftparts.ca and now i realize it does not come with the buffer tube adapter or whatever you want to call it and the ubr does not go on properly as theres a good inch or so that it slides back until it hits the screw head, or is the pts version of the ubr installed differently on aeg's?

I believe there are 2 separate versions for GBB and AEG for the Magpul PTS UBR. Maybe you got the wrong one?

If you check the first picture in this thread, the buffer tube at the very top is for GBB. The smaller tube and screw below it is for AEG. the tube looking thing on the right is actually not a tube but a different cheekrest you can install. If you got a threaded buffer tube that screws in the like the very top one, thats the GBB version.

the only items in the box where the ones pictured here, no buffer tube of any type gbbr or aeg was included. link: http://www.airsoftparts.ca/store2/in...oducts_id=1833

Hmm, I've got the ACM so I can't say for sure if there's a missing part or not. Try some youtube videos and if that doesn't help or it indeed looks like something is missing, shoot jugglez and email and I'm sure you'll get sorted out.

Yea so apparently the PTS version of the UBR requires an after market Installation Kit...way to go magpul....way to go...for the future anyone looking to get this stock, save the headache, buy the ACM for 60 bucks that comes with a gbbr and aeg buffer tube, and avoid the PTS that magpul in their infinite wisdom decided to sell for 200 bucks and without the buffer tube (making it usless as you cannot attach it properly). I need to go lay down and take an advil.