TacFire 3/4" High Compact Size Riser Picatinny Mount With Thumb Screws, T6 6061 Aluminum , 3.1" Long with 7 Slots, Best for Red Dot Sight and Compact Scope TacFire Official Product. 3/4" Aluminum riser with two thumb screws.Fits most weaver and picatinny rails , best for red dot sights and compact size scopes T6 6061 Aluminum Construction, matte black finish , light weight but heavy duty design , super durable Designed for elevating scopes, sights, flashlights, etc See through design which allows to use the original sight Length : 3.1" , Weight : 3.2 oz