Our AR-15 M-LOK Handguards are replacing the old picatinny rail system. M-LOK is a universal system, developed by Magpul and is intended for attachments that lock into Free Float Tube M-LOK Slots. It is very versatile and a customizable locking system. At Veriforce Tactical, we sell the best AR-15 M-LOK Handguards on the market. With a variety of styles, you will only have to look in one place for all your AR-15 M-LOK Rails. We also sell M-LOK Accessories that will seamlessly attach to your M-LOK Forend.