Is there any difference between the USMC style Unertl scope and the same design that U.S. Optics has? Is it that U.S. Optics is now the only manufacturer or do they both still make it? Not that I can afford either, just curious.
US Optics has been the principle provided for a few years now, but Unertl still makes the scopes and they are available to the public (sans the USMC markings) for $2500. Visit the link below to find out more.
US Optics received the contract for repair and refurbishment of USMC M40 scopes. This meant that all cracked or discolored optics, rusted parts, knobs, etc were to be replaced or repaired as required. USO reviewed the design and upgraded the scope using modern materials and design concepts. Note that the old scopes had been in the field since just after Vietnam and needed work.
My understanding is that the Optics replaced in the scopes were upgraded from the old design and that the erector tube mechanisms were designed to be compatible with the requirements of the M40A3 (MST-100 Scope) and the USMC .50 Caliber weapons systems (MST-150 Scope)
These are the ones (MST-100) that are available to the PUBLIC.
UNERTL has and is building the original UNERTL 10X design and is a faithful reproduction of the original one.