I emailed Kenton last week to ask if they could make larger (OD) turrets for the shv 5-20. They have not responded. Are there any other companies that make turrets? I was thinking larger exposed turrets similar to the NXS might be an inexpensive way to upgrade the shv. As long as the internal dementions and the depth of the elivation turret were correct the zero set and dialing up would all be the same or am I missing something?