Come to think of it Jim, I suppose a non-tapered half moon would basically imitate the Patridge style front sight. My experience had been with tapered variants only. I have seen the later half moons with the serrated ramp cut into the rear face. Practically speaking I can see the advantage of the half moon in a service arm. But, this raises the issue in my mind of why Colt would equip its fixed sight New Service with a sight that was more likely to snag? I know, not the Colt forum, but I'm just seeking thoughts and opinions.

Thanks All