
Originally Posted by
Ryno12
What size GPs are the Colt 10.3 & 11.5 barrels?
I have a 11.5 FBI HRT barrel coming from Grant tomorrow, I will try to follow up with info on this, but I expect it to be as Grant mentioned on the previous page (i.e., ported for suppressor use).
Regarding the 10.3s, a user just posted pics on the TOS of a 10.3 barrel from G&R with a port of 0.070, just as expected.
I still have one SAW barrel that likely has a 0.078 port (never measured, but I just sold my spare SAW barrel with that port size) that I will eventually replace with a 10.3 from Grant once they are available again.
Here is the pic from TOS of the Colt 10.3 from G&R (courtesy of user MNRidesHonda):

It is awesome that G&R makes these available.
Last edited by kwilkin; 05-25-16 at 09:47.
Reason: add clarification
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Wilcox EOTech riser kit in TAN
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