The Magpul M-LOK Aluminum Rail Section is designed to be used with all M-LOK compatible forends and handguards wherever you might need to add an M1913 Picatinny rail section! Machined from Mil-Spec anodized aluminum, the M-LOK rail sections have beveled ends to reduce snagging and eliminate sharp corners and edges. Includes all necessary hardware for mounting directly to M-LOK slots on aluminum or polymer handguards