This is a Leupold Mount known as the DeltaPoint, model 173236.
Magnified optics are great but sometimes you need the speed and field-of-view of a red dot - so why not have both. The Leupold DeltaPoint Pro 45 degree AR Mount allows you to mount a DP Pro to any Picatinny rail for maximum versatility and extremely quick transitions between your magnified optic and a red dot.
Features:
Places DP Pro at a 45 degree angle for quick transitions between optics
Precision machined from aerospace grade aluminum for durability
