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Old July 2nd, 2009, 01:27   #6
turok_t
 
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Join Date: Feb 2009
Location: Toronto, Ontario, Canada
Thanks for your reply Mr. Hitman. I was thinking about getting the Mad bull M4A1 14.5" outer barrel: http://www.madbullairsoft.com/Englis...ge.682x550.jpg

If you look at the link, are those the small grooves that you are referring to (the two small notches that are 35.5mm apart? Thanks!

Quote:
Originally Posted by Mr.Hitman View Post
Depends on your barrel.. Well if it's an M4 barrel, than the Type B is best, but there might be some modifications needed as the description says on the page of the link.

Also, Type B is more secured, if you got the grooves on your barrel, and it will be already alligned straight. Type A uses nuts to secure onto the barrel.

If you don't want to modify your barrel when Type B doesn't fit, buy the Type A.
Type B will fit if you modify your barrel and make the grooves yourself.
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