MDT Accessory Scope Ring Caps allow the attachment of rails, red dot optic plates, and more to your scope mount. They're compatible with MDT One-Piece Scope Mounts and MDT Elite Scope Rings. Each features an integral recoil lug slot with offset mounting holes to maintain positive contact between scope ring cap and accessories. Precision-machined from 6061-T6 aluminum. Anodized finish to resist wear and corrosion. Includes 2 Accessory Scope Ring Caps. Allows you to attach rails, red dot plates, and more to your scope mount Compatible with MDT One-Piece Scope Mount and MDT Elite Scope Rings Integral recoil lug slot keeps it in place under heavy recoil Precision-machined 6061-T6 with anodized finish Includes 2 Accessory Scope Ring Caps