MIDWEST INDUSTRIES, INC. GEN-2 M-LOK ®TOP RAIL FOR HK MP5K The Midwest Industries Gen-2 M-LOK® Top Rail for the HK MP5 modernizes your platform with enhanced functionality and refined aesthetics. Featuring a longer 1913 Picatinny rail, improved charging handle clearance, and lightning cuts, this Gen 2 design allows easy mounting of optics, lights, lasers, and additional accessories while retaining the factory handguard. Precision-machined from hard coat anodized 6061 aluminum, it installs without gunsmithing using the included tools, is 922R compliant, made in the USA, and backed by a lifetime warranty for dependable, long-term performance. FEATURES Gen 2 version includes a longer 1913 rail, better clearance around the charging handle, and lightning cuts for aesthetic upgrade. Easy no gunsmith install, all tools included Allows the user to mount an optic and a light or laser while retaining the factory handguard Forward M-LOK® slot allows mounting of additional accessories Constructed of Hard Coat Anodized 6061 Aluminum for a lifetime of service Made in the USA 922R Compliant Lifetime Warranty COMPATIBILITY Compatible with HK MP5K, and clones such as Century AP5/K, Zenith ZF5/K and Military Arms Corporation MAC 5/K. This product is not compatible with any MP5 .22LR firearms. This rail is designed to fit 9mm receivers; there may be fitment issues with the 40cal/10mm receivers.