Otter Creek Labs M4 Locating Collar for Ops Inc 12 Model – 17-4 Steel, Nitride (OCL-201)

• Locating collar designed for M4 spec barrels using Ops Inc 12 model suppressor mounts
• Compatible with Ops Inc 12th Model, AEM5, and OCM5 suppressor systems
• Made from H900 heat treated 17-4 steel for strength and durability
• Black nitride finish provides corrosion resistance and reduced surface wear
• Otter Creek Labs M4 Collar series component for suppressor mounting alignment
• For use with M4 spec barrels and specific Ops Inc pattern suppressors

The Otter Creek Labs M4 Locating Collar is a barrel collar designed for aligning suppressor mounting systems on M4 spec barrels. This locating collar provides a fixed interface that supports proper positioning with compatible suppressor mounts and barrel profiles.

The Otter Creek Labs M4 Locating Collar is constructed from H900 heat treated 17-4 steel and features a black nitride finish for surface hardness and corrosion resistance. This model fits M4 spec barrels and is compatible with Ops Inc 12th Model, AEM5, and OCM5 suppressor systems. It is used as a suppressor alignment component within mounting assemblies. In typical setups, the collar installs on the barrel to provide a stable indexing surface for mounting hardware. The product type is a barrel collar used in suppressor accessory configurations and supports consistent fitment where specified compatibility standards are met.