Sig Sauer Compact Romeo-X Red Dot 2 MOA Dot and 32 MOA CircleEngineered for precision and reliability, the ROMEO X Compact red dot sight brings military grade robustness and a durable CNC machined 7075 aluminum housing. The sight features a 2 MOA Red Dot 32 MOA Circle reticle, a clear aspherical lens, and a side load battery system for a long 20,000 hour runtime. The unit is black and has an objective lens diameter of 24mm, promising unwavering performance with a 10 year warranty.