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[ARCHIVED THREAD] - Difference between "HIGH" and "Low" shelf lower recievers?????

Posted: 3/13/2007 1:14:21 AM EDT

Whats the difference between "Low Shelf" and "High Shelf" lower recievers? Which is better? Basically what or the advantages of one over the other?

Also which brand/type lower receivers are "high shelf" and which are "low shelf"?

Posted: 3/13/2007 1:16:33 AM EDT

[#1]

functionally there is no difference, if all you plan to do is shoot it.

if you're ever planning to drop the coinage on a RDIAS or a RLL, then you run into a problem.

Most receivers are going to be low shelf. Colt is one prime example of a High Shelf receiver. Between that and their non mil spec trigger pins, I can't for the life of me imagine why anyone would buy a recent manufacture Colt AR.

Posted: 3/13/2007 1:30:03 AM EDT

[#2]

okay?

Therortically, which one is RDIAS compatible?????

though i really have no plans of doing a full auto conversion, im just curious.......

Posted: 3/13/2007 1:45:25 AM EDT

[#3]

The low shelf is the one that is best suited for drop in conversions.

A high shelf receiver can be milled to spec if required, but its easier to go with a low shelf receiver.

Posted: 3/13/2007 2:01:10 AM EDT

[#4]

The red circle shows the desired shelf height.

As a quick gun show rule the bottom of the safety/selector hole to the shelf should be 1/4 inch.

Anything less is a high shelf.

Posted: 3/13/2007 2:06:42 AM EDT

[#5]

THANK YOU FOR THE INFORMATION.

Just curious, IM new to the AR world and like to learn what I can.

Posted: 3/13/2007 8:50:00 AM EDT

[#6]

Quoted:
functionally there is no difference, if all you plan to do is shoot it.

if you're ever planning to drop the coinage on a RDIAS or a RLL, then you run into a problem.

Most receivers are going to be low shelf. Colt is one prime example of a High Shelf receiver. Between that and their non mil spec trigger pins, I can't for the life of me imagine why anyone would buy a recent manufacture Colt AR.

Colts use a web or pinned in block to prevent RDIAS installation. If this web or block is removed, the "shelf" is at the correct height.

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[ARCHIVED THREAD] - Difference between "HIGH" and "Low" shelf lower recievers?????

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[ARCHIVED THREAD] - Difference between "HIGH" and "Low" shelf lower recievers?????

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[ARCHIVED THREAD] - Difference between "HIGH" and "Low" shelf lower recievers?????