The Arisaka Defense Offset Picatinny Adapter OCM-C, OSM-K, OSM-M, SSM-K, SSM-M is a compact rail section designed to bridge modern handguard interfaces with traditional Picatinny-mounted lights and accessories. Machined from 6061-T6 aluminum and finished in a durable hard coat anodizing, it provides a rigid, low-profile mounting surface when paired with an Arisaka Offset Scout Mount or Side Scout Mount on M-Lok, KeyMod, or CMR handguards.

This adapter is ideal for shooters who want to keep their existing Picatinny-based lights or optics while upgrading to modular handguards. Its short 1.76 inch length and 0.5 ounce weight keep setups trim and balanced, making it well suited for range use, training, and general-purpose rifle setups where clean accessory placement matters. The precise CNC machining and thoughtful design reflect Arisaka Defense’s reputation for practical, well-executed mounting solutions.

Key Features:

• Manufacturer: Arisaka Defense
• Model: Offset Picatinny Adapter OCM-C, OSM-K, OSM-M, SSM-K, SSM-M
• Material: 6061-T6 Aluminum
• Finish Color: Black Hard Coat Anodized
• Length: 1.76"
• Weight: 0.5 oz
• Mount Type: M-Lok, KeyMod, CMR (with compatible Arisaka Scout Mounts)
• Unique Features: Converts Offset Scout/Side Scout Mounts to a Picatinny rail section