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Monolithic rails

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/18/2012 at 21:26
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Optics Journeyman
Optics Journeyman

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/20/2012 at 10:43
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Chief Sackscratch

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Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/20/2012 at 12:07
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Optics Master
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Not sure I understand... the language "monolithic rail platform" has me confused. Did they get a patent for a complete upper assembly? I don't see how that could stand.

The language describes the following:
"In the broadest interpretation of their patent, it covers a monolithic rail platform that has:
  • a handguard portion adapted to receive the barrel
  • an upper receiver portion that houses a bolt carrier and is integrally formed with handguard
  • a coupling at a forward end of the upper receiver, integrated with the handguard portion, that has a releasable clamp to hold the barrel

There is also language in the patent that covers the use rotating bolts, barrel extensions, contiguous rails, some specific clamping arrangement and what sounds like a proprietary bolt carrier design."

Post Options Post Options   Thanks (0) Thanks(0)     Back to Top Direct Link To This Post Posted: July/24/2012 at 21:45
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Some of the best AR manufacturers like Lewis Machine and Tool  (LMT) and La Rue and a few others have built upper recievers where the upper has the rail extend forward being one piece of metal. This has an advantage in allowing scope placement flexibility that is better than two seperate pieces like a flat top upper with a quad rail fore end in front   as there is no flex.  It is a small detail but in a world of cut throat competition to charge three times the price for and AR that any other company can charge and get it does make a difference.   Now just to take you back a few years I will add that the first time I bought an AR-15 was in 1975 and that Colt AR-15 cost $325. it had the triangular fore end and at the time there was no short version available to the general public. Since that time there have been a lot of companies make a lot of money building specialty parts to customize them. 
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