the Swampfox Optics Liberator is a super compact, accurate micro dot sight optimized for lightning fast sight picture acquisition with both eyes open while focusing on the target. Lightweight but tough, it is waterproof, fog resistant and features hydrophobic and anti-scratch lens multi-coatings. Use the included absolute co-witness mount for AR-15s or use the included low mount for AKs or shotguns. The scope body is compatible with industry standard T1 mounts. Choose from 3 MOA red dot, red circle dot, or green circle dot reticles.