I have the 4-16 x50, and the 6-24 x50 FFP. Like them both!
Unfortunately, both of these are older discontinued models, sometimes still for sale on the internet. Solid construction, great glass, overall excellent scopes.
I have three of them that I picked up cheap. Paid $85 for the Mod 3 2-7, forget what I paid for the Mod 3 1-4 and Mod 7 5-25 x 56mm. All heavy as heck. Lots of tunneling looking through the 2-7.
All sitting in there boxes unmounted. Haven't found a use for them yet. hth
Tried one (X3 Conquer 6-24x50) and returned promptly. Glass was terrible, blurry, dark and tons of CA, not usable at all at full zoom. Thank goodness it was amazon prime and back it goes before 24 hours mark. Maybe I got a dud?