Features: 45 Degree Tactical Vision Rail for RTS (Rapid Transition Vision).

Perfectly Adjustable for Fast Transition Vision, Flexible to Fit on Picatinny Rail Easy to Install and Quick to Remove Precise and Lightly Machined Color: Black Weight: 30g/1.05oz Slot: 20mm/0.78"

Package: 1 Piece Mounting 1 Piece Hex Key