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Archived [ARCHIVED THREAD] - Gas port hole size for 24 inch barrel
Posted: 9/8/2005 2:16:14 PM EDT
A gunsmith buddy is building an upper and has turned a 24inch barrel, what's the proper gas port hole size for this? Same as a 20inch or a few thou smaller?
Thanks.

Link Posted: 9/8/2005 4:24:04 PM EDT
[#1]
Go to the Maryland AR-15 site. there is a chart there. Best I can do.

Link Posted: 9/8/2005 5:49:53 PM EDT
[#2]
Use 0.093 to 0.096 inches; smaller value for skinner profile, larger value for larger profile at gas port location. Charles the Gunsmith.

Archived [ARCHIVED THREAD] - Gas port hole size for 24 inch barrel
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