I like the 42mm part vs. a 50mm on most other tacti-cool scopes, but you're right... different needs and wants.

Mentioned this on another thread but once I install a rail, low rings, and 50mm I have needed a kydex taco in the past. A 42mm with low mounts sans rail lets me avoid the taco, but might not be suitable for the same application as the railed 50mm. A 42mm on a rail usually isn't any better than a 50mm anyway since both have good clearance with the rings stacked on the rail.

I haven't always been able to get the 50mm as low, even without the rail. So yeah, mebbe the 3-15x is a tweener. Good for applications where you can run it low.

Jason

Last edited by 4th_point; 01/11/14. Reason: typos, connection problems