FS750 Features: · Quick Detachable Front Sight with Adjustable A2 Square Post Assembly · Fit All Picatinny/Weaver Style Rails · Precision Elevation Adjustments to Enhance Shooting Accuracy · Profile Designed for Installation on Gas Block Specifications: · Material: Aluminum · Weight: 2.7 oz · Pieces: 1 · Rail Type: Picatinny/Weaver · Length: 1.4 inch · Width: 1.9 inch · Height: 2.1 inch FS66 Features and Specifications: Rugged aluminum/steel construction Matte-black finish MOA windage and elevation adjustment in accordance with current military requirements Spring-loaded detent for positive and repeatable W/E adjustments A2 style dual apertures Larger rapid target acquisition aperture for CQB operations Smaller precision aperture for high accuracy aiming operations Exact height to co-witness with standard front sight and most electronic dot sights One-piece integral Picatinny mounting deck Fits all flat tops Equipped with locking retention thumb nut Dimensions: 1.41 inches in height; 2.79 inches in length
