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Page AR-15 » Rifles, Uppers, Lowers, Barrels, and more
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Archived [ARCHIVED THREAD] - Flat Top Upper ???
Posted: 7/1/2003 3:40:15 PM EDT
Are the screw grooves in them all the same, or do they or did they make different styles. Also, what's with the numbers on top?

M4-AK

Link Posted: 7/1/2003 4:15:48 PM EDT
[#1]
Just as long as the flat top is 1913 spec, the screw grooves are the same distance apart.

The numbers are for remounting devices in the same place to get repeat zero.

Hope that answers your question.

Calvin

Link Posted: 7/2/2003 7:33:53 AM EDT
[#2]
Quoted:
Are the screw grooves in them all the same, or do they or did they make different styles. Also, what's with the numbers on top?

M4-AK
View Quote

[url]quarterbore.com/kac/kacrisras.html[/url]
Archived [ARCHIVED THREAD] - Flat Top Upper ???
Page AR-15 » Rifles, Uppers, Lowers, Barrels, and more
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