Sig Sauer Compact Romeo5XDR Gen II with Juliet5 Micro Magnifier 5x Red Dot - 2 MOA with 65 MOA Circle - High Performance Lens Coatings Including Dielectric Coated Prism for Excellent Light Transmission Ultra-compact Size and Weight Dual Reticle: 2 MOA Dot with User Selectable 65 MOA Circle 1.41 Sight-Height for Absolute Cowitness 90deg Push-Button Flip-to-Side Magnifier Mount AAA Battery & MOTAC combine to provide up to 50,000 hour runtime Length: 2.7in (Romeo5XDR GEN II), 3.1in (Juliet5 Micro) Width: 2in (Romeo5XDR GEN II), 2.7in (Juliet5 Micro) Objective Diameter20mm (Romeo5XDR GEN II), 24mm (Juliet5 Micro) Adjustment: 100 MOA(Romeo5XDR GEN II), 30 MOA (Juliet5 Micro) Weight: 6.4oz (Romeo5XDR GEN II), 9.6oz (Juliet5 Micro) Dependable IPX-7 Waterproof and Fogproof Performance Durable Half--Inch Hex Mount