Bobro Engineering Precision Optic Mount Standard 30mm Rings 20MOA Black

Bobro Engineering Precision Optic Mount Standard 30mm Rings 20MOA Black. The Precision Optic Mount from Bobro Engineering features the patented US Patent 8567105 BLAC lever system which requires no manual adjustment to attain a proper rock solid engagement on a 1913 Picatinny rail. This Bobro Engineering Mount features the patented US Patent 8567105 BLAC lever system which was designed around the following parameters:. The system must be compatible with any 1913 Specification Rail to include sys