Magpul’s M-LOK rail system is becoming a favorite option among shooters for attaching accessories like slings, bipods and lights to hunting- and tactical-style longarms, especially AR/M-4-pattern rifles. For rifles equipped with clam-shell handguards and spring-tensioned Delta rings, Magpul offers the MOE SL Handguard as a drop-in, M-LOK-compatible upgrade. The SL is a trim, lightweight component that features molded ribs to improve purchase, a forward handstop and, of course, plenty of M-LOK slots at the two, six and 10 o’clock positions. In this week’s video, Joe Kurtenbach takes a closer look at the SL, which is available for mid- and carbine-length gas systems in black, FDE, gray and OD green. Just a note, to install the SL handguard, the front sling swivel must be removed, and the unit requires a round—not triangular—front handguard retaining cap. Learn more in this week's NRA Gun Gear of the Week video hosted by American Rifleman's Joe Kurtenbach.