Reference: SPC-1399-BK
Tactical BCM Lower 1/3 Cowitness Optic Mount For AR15 Picatinny Rail Accessories
The lower 1/3 co-witness height is 40.4mm (1.6 inches) BCM Lower 1/3 Cowitness A/T Optic Mount for M R OCapability in the face of the unexpected and catastrophic, the Lower 1/3 Cowitness Mount is built in anticipation of a “no fail” shot that will save another human life.