DEMO Kinetic Development Group MREX AR MLOK 13.5in Modular Rail Black. Kinetic Development Group ensured these AR Handguards & Forends are black anodized for enhanced durability in the field. The flat bottom design of these Kinetic Development Group MREX Modular Rifle Rails allows you to rest them on a supportive surface for more accurate shots. You can even pick up specialized accessories developed specifically for these rails that connect to the rail as close as possible seeming like an integrated part of it. Easily install these Kinetic Development Group MREX AR M-LOK Anodized Rails for a free-floating device that brings a ton of utility to your rifle. Specifications for Kinetic Development Group MREX AR M-LOK Modular Rails: Manufacturer: Kinetic Development Group Color: Black Handguard Length: 13.5 in Gun Rail: M-LOK Condition: Factory DEMO Length: 13.5 in Package Contents: Kinetic Development Group MREX AR M-LOK Modular Rails All mounting hardware Kinetic Development Group ARP5-030: MREX AR MLOK 13.5in Modular Rail Black