The UTG Optic Mount for 12 Gauge REMINGTON 870 & 870DM Mag-Fed shotguns is built from durable 6061-T6 aluminum with a matte black anodized finish. It features a scalloped full-length Picatinny top rail for mounting optics while maintaining access to the bead sight. The removable 4-shell carrier adds extra ammunition storage for quick access. Designed for 3.5" and under chamber clearance, this mount requires no permanent modifications, making it a versatile and user-friendly upgrade for tactical and hunting applications.