Typically, with an objective lens of 40-42mm, you would use a low height mount. It can vary depending on what rifle you intend to mount your scope to, but either way I'd still recommend the low height.
Typically, with an objective lens of 40-42mm, you would use a low height mount. It can vary depending on what rifle you intend to mount your scope to, but either way I'd still recommend the low height.