Leapers MTU055SSMK Monolithic Handguard Aluminum Bringing The Innovative UTG Pro Monolithic Handguard For MP5 To The MP5K, Combining Optics Real Estate And Handguard, All In One. Patented And Easy-To-Install Locking Interface, Extra Ergonomics To Prevent Hot Spots And Snag points, Topped With An Extended 13 Slot Picatinny Rail And Cutout For Serial Number Identification. Extra Lightweight at Only 7 ounces installed.