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pazzo
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« on: January 19, 2010, 01:06:05 » |
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I am just wondering what is the main difference between the two and what would be the 'better' option, when I choose to buy. Also, What is recommended about the buffer tube? I read something that the buffer spring is not necessary on the XCR!? I am new to this stock stuff and have no clue what I'm talking about  |
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Cid1911
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« Reply #1 on: January 19, 2010, 01:22:17 » |
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The buffer tube isn't necessary, strictly speaking, to the function of the XCR because it has a different design of recoil spring and buffer than that of an AR. It is necessary if you want to use a stock designed for an AR but serves no other purpose. If you don't like the RA standard folding tube stock (I do and recommend it) then you will want an XCR with the M4 adapter. If you have a choice between milspec and commercial, I'd go with the MilSpec tube. I'm not really sure if there's any advantage to the commercial tube but perhaps someone else can answer that part of your question.
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Semper Fidelis
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pazzo
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« Reply #2 on: January 19, 2010, 01:27:05 » |
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From my understanding the commercial one is better quality(?), according to some distributors I spoke with.
I do like the factory RA stock, but I want to try something else. I won't know whether or not I like it until I try it. Furthermore, in Canada we do not get the RA folding stock - just the fixed version. I have a folding adapter coming soon for the RA stock, but I also want a folding CTR.
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jon1371usmc
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« Reply #3 on: January 19, 2010, 11:53:10 » |
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Commercial tubes are no better in quality than that of the Milspec tubes. The only difference is the outer diameter of the tube. AR 15 companies had to change a few specs on the platform so that they would not be violating an patents that Colt held at the time. I would choose Milspec. Better variety of stock options and readily available.
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"When your life depends on it, you will not rise to the level of your expectations, but rather fall to the level of your training."
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EricCartmann
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« Reply #4 on: January 19, 2010, 12:02:19 » |
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Commercial tubes are no better in quality than that of the Milspec tubes. The only difference is the outer diameter of the tube. AR 15 companies had to change a few specs on the platform so that they would not be violating an patents that Colt held at the time. I would choose Milspec. Better variety of stock options and readily available.
This! |
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"Good people do not need laws to tell them to act responsibly, while bad people will find a way around the laws." - Plato (427-347 B.C.)
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pazzo
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« Reply #5 on: January 19, 2010, 12:04:03 » |
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Thanks guys. So why would this company recommend the commercial over the mil-spec? I'll have to call them back and ask.
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Cid1911
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« Reply #6 on: January 19, 2010, 12:08:20 » |
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It wouldn't surprise me if they had a large surplus of commercial tubes in stock and wanted to get rid of at least one more. Usually, when you order a stock online you will notice that the mil-spec version is out of stock much more often and sooner than the commercial version due to the mil-spec tube being much more popular.
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Semper Fidelis
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pazzo
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« Reply #7 on: January 19, 2010, 12:10:59 » |
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They are actually out of both! IIRC, he said something about the mil-spec tube being skinnier and the quality being a little less durable? I'll have to talk to them again and see exactly what they mean.
They are a very credible company up here and are definitely not known for falsely 'selling' people things.
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Cid1911
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« Reply #8 on: January 19, 2010, 12:16:54 » |
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They are a little skinnier but I call B.S. on the lower quality of milspec tubes in general. They seem to work fine for the military  Perhaps he mean the particular batch of milspec tubes that he has are defective or of lesser quality of manufacture than his commercial versions. I'm partial to the Vltor milspec buffer tubes because they have great fit and finish for the money. They're pretty cheap if you order from Brownells. |
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Semper Fidelis
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DSM
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« Reply #9 on: January 19, 2010, 18:30:39 » |
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Or, he might have been saying that since it is thicker it is stronger. The difference is miniscule, however, I'd go with the milspec for the reasons jon mentioned earlier, better stock options.
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2B1-ASK1
"Then there are the celebrities. What a senseless, empty concept for someone to be, as my friend the great historian Daniel Boorstin put it, 'known for his well-knowness'. How many live-ins, how many trips to rehab, maybe-wow-you could even get arrested! All this can catapult an attractive youngster to the front ranks of the media, there to be consulted on the drought in the Sahel, the benefits of omega-3 fatty acids, etc." Carrying the Fire, Michael Collins-Apollo 11 CMP
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pazzo
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« Reply #10 on: January 19, 2010, 18:40:03 » |
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Or, he might have been saying that since it is thicker it is stronger. The difference is miniscule, however, I'd go with the milspec for the reasons jon mentioned earlier, better stock options.
I'm thinking of keeping it simple and going with a CTR stock. |
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Caboose
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« Reply #11 on: February 12, 2010, 16:48:14 » |
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So how exactly do you tell the difference? I want to get a MOE stock but I'm not sure whether I have commercial or mil spec.
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When I die, I want to go peacefully like my Grandfather did, in his sleep -- not screaming, like the passengers in his car.
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pazzo
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« Reply #12 on: February 12, 2010, 16:49:23 » |
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Magpul's website can help you identify which one you have, if I'm not mistaken.
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dont_tread_on_me
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« Reply #13 on: February 13, 2010, 08:12:00 » |
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Commercial 1.170"
Military 1.146")
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War is an ugly thing, but not the ugliest of things: the decayed and degraded state of moral and patriotic feeling which thinks nothing worth a war, is worse.... A man who has nothing which he is willing to fight for, nothing which he cares more about than he does about his personal safety, is a miserable creature who has no chance of being free, unless made and kept so by the exertions of better men than himself.----John Stuart Mill
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LilTate
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« Reply #14 on: February 16, 2010, 10:10:01 » |
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So in order to determine if I have a mil or commercial tube I have to use calipers?
any easy way to determine if it is one or the other (any distiguishing marks, giveaways, etc)
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I'd like to get my new XCR with new trigger and new ambi safety selector plzzzzzzzzz Terra...... ;
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dont_tread_on_me
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« Reply #15 on: February 16, 2010, 10:18:00 » |
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So in order to determine if I have a mil or commercial tube I have to use calipers?
any easy way to determine if it is one or the other (any distiguishing marks, giveaways, etc) To answer your question,yes you should measure it.Anything else is a guess. |
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War is an ugly thing, but not the ugliest of things: the decayed and degraded state of moral and patriotic feeling which thinks nothing worth a war, is worse.... A man who has nothing which he is willing to fight for, nothing which he cares more about than he does about his personal safety, is a miserable creature who has no chance of being free, unless made and kept so by the exertions of better men than himself.----John Stuart Mill
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timou
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« Reply #16 on: February 16, 2010, 12:06:04 » |
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Commercial will have a 5 degree slant back, angle, on rear end of tube. Mil will be flat. Normally there are only 4 positioning holes in mil spec and 6 in commercial.
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Left_Gun_Nut
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« Reply #17 on: February 20, 2010, 18:45:58 » |
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Commercial will have a 5 degree slant back, angle, on rear end of tube. Mil will be flat. Normally there are only 4 positioning holes in mil spec and 6 in commercial.
I picked up a 6 position mil-spec tube from Aim Surplus for like 20 bucks, so more positions are more common, but I do believe the slant is the most noticeable difference between the two tubes. If you dont have calipers, what you can do is wrap a strip of paper around the tub and mark where the end overlaps, unwind that and measure it. Knowing that circum=pi x diameter, then the length of the piece of paper will be 3.675" for the commercial and 3.6" for the mil spec. Although small, that is a noticeable difference |
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dont_tread_on_me
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« Reply #18 on: February 20, 2010, 20:31:23 » |
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Although small, that is a noticeable difference If you put a commercial stock on a mil-spec tube it will rattle even though it's impossible to notice with the naked eye. |
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War is an ugly thing, but not the ugliest of things: the decayed and degraded state of moral and patriotic feeling which thinks nothing worth a war, is worse.... A man who has nothing which he is willing to fight for, nothing which he cares more about than he does about his personal safety, is a miserable creature who has no chance of being free, unless made and kept so by the exertions of better men than himself.----John Stuart Mill
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