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How so? I am curious. Am in need of a couple myself. Replace a one or two, and then there are a couple lowers that are in need of building. Though my Pseudo Recce build may end up with an A5 before all is said and done, I am not sure yet.
I will say, lower quality REs can be of questionable utility. Have one I pulled off a DPMS lower, hey that was a clue, but the cuts for the end plate are so jacked up that you can, unless you are careful, actually get the endplate to spin around, and the cut for the retaining pin looks like someone cut it with a file. This was a factory lower as best as I can tell as well.
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The SIONICS receiver extension kit is made to exacting MILSPEC standard and comes standard with an H buffer.
http://sionicsweaponsystems.com/stor...3-carrier.html
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I'll always go with the Mil. Spec. tubes for any tele-stock I do. Glad to hear about the LMT being a hair bigger in diameter. For rifles I go with Colt, cuz I want and can afford 7075 T6 REs.
Got to be honest, my commercial tube is longer than my mil-spec tube so it fits my long arms better.
I'm guessing it's not as strong though.
Another thing that is nice are rolled threads, I'm not sure if all 7075 tubes are this way or not..
Another +1 for LMT receiver extensions. Drain holes are a nice touch if you do any over-the-beach stuff with your rifle.
I have to give a vote against LMT's buffer tube. While I generally like their products, I had bad luck with one of their buffer tubes and I know others who have too. The problem is that the tubes have either barely retained the buffer retaining pin or (when tightened just one revolution) interfere with the upper closing on the lower.
I agree that there are quality differences among different tubes. One of my favorites is the basic model VLTOR tube. It's impact extruded 7075 and in addition to other features, I like the numbers on the top so you can see your stock position setting (if your stock has witness holes for it).
I noticed the Sionics tube also has numbers on it, but they don't advertise that feature. I'm sure it's also good quality and for all I know, they are the same as VLTOR's.
Joe Mamma
Last edited by Joe Mamma; 10-31-15 at 17:00.
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