The AM DEF LW TR DPP/EFLX QD LOWER 1/3 from American Defense Manufacturing is a lightweight, Quick Detach mount designed for rifles equipped with RMSc footprint optics and Picatinny rails, offering a secure lower 1/3 co-witness option without adding unnecessary bulk. Engineered as a purpose-built optic mount, this Black anodized finish unit integrates seamlessly with modern red dot systems, providing rapid detachment and reattachment with minimal shift in zero thanks to its robust clamping mechanism and precision tolerances. Built to withstand hard use in field environments, the Lightweight TR mount combines durability with a streamlined profile, reducing weight while maintaining rigidity and repeatable accuracy when subject to dynamic shooting or rapid target transitions. Ideal for applications requiring a compact, versatile mounting solution for red dot sighting systems, it supports quick on/off utility for hunting, competition, or tactical scenarios where speed and reliability are paramount. By leveraging the RMSc footprint and Picatinny compatibility, shooters can optimize optic placement for ergonomic eye relief and improved accessory compatibility, ensuring a stable, repeatable aiming platform in a variety of field conditions.