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-   -   JJ ceramic OD (http://www.spyder.tv/forums/showthread.php?t=21890)

PHR33Z0R 07-01-2011 11:00 AM

JJ ceramic OD
Does anybody know the outside diameter of a JJ? I have a MP5 foregrip that clamps onto the barrel and it only works with 7/8" OD barrels.

PHR33Z0R 07-04-2011 11:44 AM

Re: JJ ceramic OD

It can't be that hard to find out. If you got a spyder JJ ceramic barrel just measure the diameter where the barrel is fattest.

Lawpass 07-04-2011 05:18 PM

Re: JJ ceramic OD
I'm kind of eyeballing it with a ruler, but it looks like the 7 or so inches closest to the gun of my 14" are 7/8", and the end steps out to 15/16".

Thought it worth mentioning that the spyder J&J is smaller outside diameter than other threads. Some of my friends have the A5 thread and it starts much larger. I think I read somewhere that it was reduced so it would work with the MR2/MR3 shrouds, which it does.

SparkyGT 07-29-2011 02:15 PM

Re: JJ ceramic OD
if you still need a measurement, pm me, so i get a email.

i have one and can give you a measurement in thousandths with a micrometer

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