Magpul Industries Magpul SL Handguard, Fits HK SP89/MP5K and clones with 5 barrel, Polymer, M-LOK Attachment Points, Built-in Handstop, Black MAG1048-BLK The Magpul SL Hand Guard for the SP89/MP5K is a high-strength" injection-molded polymer handguard solution that provides the user with improved ergonomics" anti-slip texturing" and M-LOK compatible slots allow mounting of modern accessories. It's an injection-molded handguard solution for SP89/MP5K and clones that provides increased utility and enhanced control of the firearm. The SL Hand Guard offers M-LOK compatible slots at the 3" 6" and 9 o'clock positions" and features a large muzzle-end hand stop" similar to the HK K-style handguard. Also compatible with the HK SP5K-PDW.