The HOLOSUN 507CX3 is a full-size pistol red dot sight featuring multi-reticle capability with both 2 MOA dot and 32 MOA circle dot options for versatile targeting solutions.HOLOSUN 507CX3 Red Dot Sight (SKU: HS507CX3RD)2.00 MOA dot size with 32 MOA circle dot reticle optionsRMR/SRO standard footprint for universal compatibilityCR2032 battery power source for reliable operationBlack matte finish for reduced glareCompact dimensions: 2.55" x 3.65" x 4.75"Lightweight at 2.65 ouncesMount sold separatelyIdeal for tactical applications competitive shooting and self-defense this holographic sight provides fast target acquisition with durable construction suitable for pistol platforms.