The Arisaka Defense ULM (Universal Loop Mount) is a purpose-built, low-profile sling mounting solution for M-Lok rail systems. Designed specifically to interface with the Blue Force Gear ULoop (sold separately), the ULM provides a secure, snag-resistant mounting point that protects the sling's cable and promotes a clean, flat sling alignment against the handguard. Unlike direct installation of sling loops through M-Lok slots, which can cause misalignment, wear, and exposure to heat sources, the Arisaka ULM isolates and protects the loop cable. The radiused pass-through tunnel minimizes abrasion and allows easy tool-free installation or removal of the loop cable. Its compact footprint occupies one full M-Lok slot and maintains a streamlined profile. CNC-machined from 6061-T651 aluminum and hard coat anodized to MIL-A-8625 Type III specs, the ULM offers long-term durability for demanding use.