Proudly Designed and Made in USA Monolithic Design Combines M-LOKA(R) and Optics Real Estate into One Rigid Mount 6061-T6 Aluminum with Dehorned Corners and Melted Contours and Finished in H-146 Graphite Black CerakoteA(R) Patented Claw Mount Locking Interface Extended 13 Slot Picatinny Flat-Top with Cutout for Serial Number Identification 8 Full and 3 Half M-LOKA(R) Slots Around Circumference of Handguard Chamfered Locking Recess Notch Prevents Hot Spots and Snag Points while Manipulating Charging Handle Overall Lightweight at 7 oz Installed Designed for 9mm Receiver MP5K and Clones and Compatible with Most Collapsible and Fixed Stocks