Features: 6 MOA Dot: A 6-MOA dot provides quicker target acquisition and better visibility, making it ideal for self-defense and during high-stress situations. A larger dot adds consistency to presentation and target alignment, perfect for rapid engagements from the holster. Side-Loading Battery: Effortless battery replacement without removing the optic ensures hassle-free re-zeroing. A high-end CR1620 battery offers easy accessibility while maintaining steady performance. RMSc Footprint: Fitting directly to your optics-ready slides, the compact optic delivers exceptional compatibility, ensuring seamless integration across a multitude of builds. Motion Sensor Function:Motion sensor activates Osight K at the slightest movement, and powers down after 3 minutes of inactivity to conserve battery. Low Power Indication: If battery voltage drops below 2.2V, the reticle will quickly triple-flash once per minute to recommend an imminent battery replacement.