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AR-15 Buffer Tube Receiver Extension Kit Mil-Spec GUNTEC USA
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Brand: Guntec USA MILTUBESET
Item: ARR-2510

Complete extension kit includes a six position Mil-Spec buffer tube, buffer, spring, end plate and castle nut.

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Customer Reviews

Most Helpful Customer Reviews

1 of 1 people found the following review helpful
5.0 Rating Great deal! - 7/12/2012
Reviewer: Butler
My GUNTEC receiver extension kit arrived yesterday and it looks great. It came with a buffer spring, castle nut, and end plate. Additionally, and unexpectedly, it came with a buffer sealed in the manufacturer's plastic sleeve. I only have two small complaints. One, I don't know of which kind of aluminum alloy the tube is made. Two, while I'm grateful to receive a buffer when I wasn't expecting one, I don't know anything about it (i.e. heavy, tungsten, etc.). I like to know everything. For the price though, it's not too shabby.
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1 of 1 people found the following review helpful
1.0 Rating doesn't fit - 1/8/2013
Reviewer: tito
Doesn't allow the stock to close on the last position. Threads are cut too far off the tube. E-mailed the manufacturer. Buy another tube, if you can find one.
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1 of 1 people found the following review helpful
5.0 Rating good product - 2/14/2013
Reviewer: Gestudo1
Ordered this kit for the low price and availability. I was a little bit worried after reading the other reviews, but after receiving this kit all worries are gone. The tube threads into my aero precision lower perfectly. As for the other complaints about the threads not allowing magpul stocks to close it is true. I compared this buffer tube to another I had got from palmetto state armory and noticed that the last threads are shaved down, the threads on this tube are not. A little grinding on the opening of the stock took care of that. All in all for the price and availability and a little work I feel like its a great deal.
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0 of 0 people found the following review helpful
1.0 Rating didn't fit at all - 12/24/2012
Reviewer: Grip
My Mil-Spec Magpul stock fit well on this buffer but the problem is the buffer tube would not thread into my lower. I tried it on three separate lowers (DPMS, Spike's Tactical, and AR57 brand) and it would only thread approx 3/4 of a turn before getting so tight that it wouldn't thread any further. Wasn't even getting close to the buffer spring retention pin, so was totally unusable. Not of any value if it doesn't fit the lower.
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0 of 0 people found the following review helpful
4.0 Rating Works well - 1/3/2013
Reviewer: Snake hunter
This buffer tube installed easily on my Bushmaster lower without incident. The reason I only gave it 4 bullets is that the threads on the tub stick out too far and will not allow the Magpul six position stock to lock in the closed position, making this, in effect, a five position stock tube.
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AR-15 Buffer Tube Receiver Extension Kit Mil-Spec GUNTEC USA
AR-15 Buffer Tube Receiver Extension Kit Mil-Spec GUNTEC USA
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