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9/22/2017 12:11:25 AM
Posted: 9/23/2005 11:01:55 AM EDT
I was curious as to what the "1-7" marking on my DPMS barrel means. My supplier said the barrel is 1/9 twist, does this mean it's actually a 1/7 twist? Any input would be greatly appreciated!

Specs on the barrel:
16" DPMS Preban barrel Cal 5.56

Here's a picture:
Link Posted: 9/23/2005 11:05:46 AM EDT
That is a heavily oiled up 1:7 twist barrel.
Link Posted: 9/23/2005 11:09:03 AM EDT
Thanks for your quick reply, thats all I needed to know!
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