FEATURES-8.39"L x 2.05"W x 3.1"H-922R compliant quad rail system for Hungarian AMD-65 models-Rugged aircraft aluminum alloy construction with precision CNC machining-4 mil-spec Picatinny rails with integrated QD swivel housings on left/right rails-Simple & friendly installation - No gunsmith or tool required-Solid locking features for most secure fit-Hardcoat anodized finish for wear resistance-Black rubber rail guards included-Proudly made in the USA