Rail size on Marui Sig P226?
 

Can anyone tell me what exact specification the rail is made to? Is it an ITI Weaver Base, or 1913 Mil. Standard? I just want to make sure an Insight M3 will fit properly on the rail.

Thanks!

I'm not sure what the exact specs on the marui P226 Rail, but I have an Insight M3 on one of my P226's and there's a bit play, nothing major though.

The grooves on the rail of the TM plastic P226 frame is a little bit wider than the locking bar of the M3. The M3 will still stay in place securely but will move slightly if you pull it back and forth along the rail.

i think.. its either 20mm or 18mm.. but im not sure how the rail is measured.. like.. from which location... if its from the groove then its 18.. if its from the widest part.. then its 20mm