Ledsniper 1" Scope Ring Adaptor with Picatinny/weaver/universal Rail for Mini Reflex Sight and 4 Retical Precision Machined Out of Premium 6061 Aircraft Aluminum Single Weaver-style 30mm scope adapter Lets you mount such accessories as red dot sight, laser, or flashlight Measures 1.8 inches long; weighs 0.7 ounces