Aim Sports MTMPXM Specialty Handguard M-LOK Drop-In Rifle Sig MPX Black Hardcoat Anodized Aluminum 12.76" Sig MPX Specialty Handguard Utilizes Standard Factory Mounting points And Hardware, Which Means No modifications To Your Firearm. Precision CNC machined Hard-anodized Aluminum Lightweight Construction offers Rugged Performance Without weighing You Down. The Slim Design remains True To The Unique lines Of Your MPX Rifle But provides a Build-In Picatinny Top Rail And Seven planes Of M-LOK Mounting Surface To Accommodate today's Modern Accessories. Features 8 planes Of Mounting Surface With Seven rows Of M-LOK slots, Drop-In Design And uses manufacturer's Mounting Hardware. Firearm Type: Rifle Material: Aluminum Finish: Black Hardcoat Anodized Positions: 7 Rails: M-LOK