Arisaka 40 Deg M-lok To M-lok Adpt

The Arisaka 40 Deg M-Lok to M-Lok Adapter solves a critical mounting problem operators face in the field: handguards with incomplete M-Lok slot coverage at 1:30 and 10:30 o'clock positions. Law enforcement and tactical teams rely on this compact solution to mount accessories—particularly Unity Hot Buttons and offset optics—where factory slots don't exist. At just 0.06 lbs, this adapter adds zero meaningful weight while maximizing rail real estate on modern carbines and precision rifles.

The adapter features three half M-Lok slots positioned at a 40-degree offset, providing flexible mounting geometry for both lethal and non-lethal accessories. Arisaka Defense engineered this piece with the same attention to tolerances and material quality found in professional-grade tactical components. The 40-degree offset angle is purposefully calculated to position accessories at the 1:30 and 10:30 positions—the optimal zones for mounting tactical lights, pressure switches, and fire control devices without obstruction or weight imbalance. Installation requires only a standard M-Lok fastener; no tools or gunsmithing needed.

This adapter is essential for operators running handguards with sparse M-Lok coverage, particularly those using modern free-floating designs that prioritize ergonomics over full-length slot arrays. Military units, SWAT teams, and competitive shooters benefit from the ability to customize weapon ergonomics without purchasing an entirely new rail system. The compact 4 x 0.4 x 5 inch footprint integrates seamlessly with any M-Lok compatible handguard, making it a cost-effective upgrade for weapons systems already in the field.