March Scopes by Deon Optical Design. March Scopes are 100% Hand Built in Japan by Craftsman with over 40 years of experience. Each scope contains more than 150 parts, which must be hand fitted and checked. March Scopes are the only scopes in the world with no internal plastic parts. This is not a problem for the expert engineers at Deon Optical with decades of experience. Each scope is designed and built to meet the rigors of hunting and tactical needs.