This scope is new in box and never mounted or adjusted in any way. It includes all paperwork/registration card, and neoprene cover.This scope is 50mm but enables you to mount the scope low to the bore like a traditional 36mm scope. Its high-tech crescent design delivers 48.6% more Total Light Throughput™ than a 36mm scope with an uninterrupted, circular field of view and sharp edge-to-edge clarity.Basically it allows you to use low rings for better sight alignment. $550 shipped to lower 48 First "I'll take it" timestamp, USPS m.o. or Paypal + 4% Trades Considered: Remington 700 L/a SS or Titanium only...action or complete gun, Rem. 700 stocks(L/a Titanium take-off, Lss or Mountain Take-off, Micky, Sendaro take-off), Swarovski binos(8X30 or 42) I will add money or accept partial trade to make equal value.