wingsuit
Newbie
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« on: January 14, 2010, 15:07:38 » |
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Everytime I hear about people talking about the ar adapter, they seem to mention some form of cheek weld required to get a better sight picture through their xcr when useing an ar stock. is there a reason that its been placed as low as it is? Its almost as if its trying to accomodate for a charging handle that isnt there.
I was just curious as to the reason, as Robinson seems like a company that takes customer feedback and incorperates it into future feature releases on their firearms, and if the overal response was of too low of a stock position when useing the ar adapter, would it be hard for them to redesign the adapter and have future ones sit higher overal?
I'm sure there would be varying opinions on how much higher, but even if changing it so that buffertube to the rail height was made to be the same as you would find on an ar?
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dont_tread_on_me
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« Reply #1 on: January 14, 2010, 17:47:21 » |
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That's an excellent observation.One that I've thought about several times myself.If you look at the M4 or the adapter for the factory folder they both look as if you were to simply reverse/flip them upside down that the sight height would be on the same plane as the top rail.This should simply be a matter of reprogramming the CNC to alter the adapter so as to raise the comb height,but I'm no engineer so....
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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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jon1371usmc
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« Reply #2 on: January 14, 2010, 17:57:07 » |
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I know that Alex has been working on sights for the XCR as I have emailed him about them once before. He stated that the rear would be a HK style drum and the front would fit on the existing dovetail. These sights would be lower profile than standard sights. Perhaps, he designed the hinge adapter to work with this setup.
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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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wingsuit
Newbie
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Posts: 11
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« Reply #3 on: January 14, 2010, 18:14:30 » |
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I know that Alex has been working on sights for the XCR as I have emailed him about them once before. He stated that the rear would be a HK style drum and the front would fit on the existing dovetail. These sights would be lower profile than standard sights. Perhaps, he designed the hinge adapter to work with this setup.
that still doesnt make sense to me cause that would be the backwards solution to the problem and would only acocmadate a single xcr sight (not to mention optics). if we are useing an m4 stock, were likley also useing sights and sight heights designed for the stock to rail height of an ar. robinson has done a great job of product improvments and continually updating their product once flaws or opportunity for improvments show themselves. I'm just wondering if they would think this is an area that could use improvment, or if they have reasons for the height they chose. |
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dont_tread_on_me
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« Reply #4 on: January 14, 2010, 18:17:01 » |
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Perhaps, he designed the hinge adapter to work with this setup. That's possible but I see absolutely no reason for re-inventing the wheel when all he had to do was make the stock in line with the rail like an AR and you would have a whole bunch of things to choose from without having something proprietary.It's easier to raise the stock/comb height than to add a $250 set of sights that will most likely have a very limited market.  |
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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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Cid1911
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« Reply #5 on: January 14, 2010, 21:02:34 » |
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If the stock was inline with the top rail, wouldn't you still need lower than average sights since the top rail is higher than average over the bore axis? When I say higher than average I mean higher than an AR which is what most BUIS are designed for.
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Semper Fidelis
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X00404
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« Reply #6 on: January 14, 2010, 21:21:31 » |
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If I recall correctly the M4 adapter puts the stock in line with the barrel like the M4.
If you reverse the milling the stock would be above the center-line of the barrel.
That is why the approved solution is to make an adjustable cheek riser.
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Ich wuerde mich gerne geistig mit dir duellieren... aber ich sehe du bist nicht bewaffnet!
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dont_tread_on_me
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« Reply #7 on: January 15, 2010, 00:44:29 » |
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If you reverse the milling the stock would be above the center-line of the barrel. So what would be wrong with that,felt recoil would be even less because your above the center. If the stock was inline with the top rail, wouldn't you still need lower than average sights since the top rail is higher than average over the bore axis? When I say higher than average I mean higher than an AR which is what most BUIS are designed for. It may not help with the front post bottoming out like some have had issue with but it would put your eye in the same place as an AR would,relatively speaking anyway. |
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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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DSM
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« Reply #8 on: January 15, 2010, 09:16:48 » |
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IIRC, the M4 stock adapters were a compromise and something thrown out there as a quick option until they could develop something better, i.e. the mythical "new stock". Alex doesn't really like AR stocks on his rifle apparently.
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For fiscal year 1996 NASA was authorized approx. $14.2B in spending. For comparison, the Health and Human Services budget for the same year was over $600B. In other words, Health and Human Services consumes the entire NASA budget in about 6 workdays. People who believe the money spent flying into space could be used to solve all our social ills should consider this fact: Does anybody really believe an extra 6 days of work by the social welfare agencies would solve our problems? -Mike Mullane
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Cid1911
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« Reply #9 on: January 15, 2010, 10:48:22 » |
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IIRC, the M4 stock adapters were a compromise and something thrown out there as a quick option until they could develop something better, i.e. the mythical "new stock". Alex doesn't really like AR stocks on his rifle apparently.
Understandable, IMO. While many of them (AR stocks) look pretty decent, none of them look like they truly belong on the XCR. Kinda like putting an M4 collapsible stock and a rail system on a 10/22.  *disclaimer* Not meant to offend anyone with a tactical 10/22. |
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Semper Fidelis
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