Arisaka Defense® Rail Slider™ Picatinny 3-Slot M-LOK Adapter with QD Mount – RS-RAIL-3M
The Arisaka Defense® Rail Slider™ Picatinny 3-Slot M-LOK Adapter (RS-RAIL-3M) is a highly specialized, ultra-low-profile weapon interface component engineered to bridge the gap between classic Picatinny bipods and modern, lightweight M-LOK handguards. Standard Picatinny rail sections add unnecessary bulk, stick out too far from the handguard, and often lack secondary utility features. The Rail Slider (850036188544) completely revolutionizes this space, delivering a streamlined multi-function attachment deck that keeps your front-end gear tight, dynamic, and incredibly lightweight.
Precision CNC-machined from premium 6061-T6 aluminum and finished in a non-reflective, Mil-Spec Type III hardcoat black anodization, the RS-RAIL-3M supplies 3 clean Picatinny slots. This short footprint is explicitly optimized to host heavy-duty QD bipods (such as Atlas or standard Harris models equipped with Picatinny rail clamps) without extending unnecessarily past the mounting base. The defining masterstroke of Arisaka’s design is the seamless integration of a built-in Quick Detach (QD) sling swivel mount directly into the center profile of the rail body. Featuring an anti-rotation interior layout, it stops your sling from tangling or twisting while under heavy tension. By sitting dramatically lower than standard generic adapters, it brings the center of gravity closer to the barrel axis for increased stabilization when anchoring into a bench shooting position.
Includes: (1) Arisaka Defense Rail Slider Picatinny 3-Slot M-LOK Adapter with Integrated QD Mount, (2) Low-Profile M-LOK Screws, and (2) Magpul M-LOK T-Nuts.
Key Features
- Integrated Anti-Rotation QD: Features a low-profile center-cut QD pocket that prevents sling twisting, eliminating the need for separate dedicated sling mounts.
- Optimized 3-Slot Profile: Perfectly scaled to fit quick-detach bipod brackets and tactical foregrips without leaving loose, snag-prone empty rail sections exposed.
- Ultra-Low Profile Axis: Positions your accessories closer to the direct bore line of the handguard, optimizing weapon center-of-gravity and muzzle control.
- Premium 6061-T6 Aluminum: Machined from solid aircraft-grade structural billet to withstand heavy front-end load distributions and aggressive recoil impulses.
- Mil-Spec Hardcoat Anodizing: Finished with a rugged Type III matte black surface treatment to deflect chemical cleaners, range scrapes, and field oxidation.
- Turnkey Hardware Inclusions: Ships complete with high-strength fasteners to guarantee a rock-solid, vibration-proof lockup onto any standard aluminum M-LOK slot layout.
Product Specifications
- Brand: Arisaka Defense®
- Model: Rail Slider™ Picatinny M-LOK Adapter
- SKU / MPN: RS-RAIL-3M (RSRAIL3M)
- Slot Count: 3 Mil-Spec 1913 Picatinny Slots
- Interface Footprint: Fits Standard M-LOK Slots (Occupies 1.5 M-LOK spaces)
- Secondary Interface: Integrated Anti-Rotation QD Sling Mount
- Material Core: CNC-Machined 6061-T6 Aircraft Aluminum
- Finish: MIL-A-8625 Type III Hardcoat Anodized (Matte Black)
- Overall Length: ~2.10 Inches
- Weight: 0.80 oz (0.05 lbs) with hardware
- UPC: 850036188544
