Ocl M4 Collar Raw Heat Treat

The Otter Creek Labs OCL M4 Collar Raw Heat Treat is a precision-engineered locating collar designed for M4-spec barrels paired with premium suppressor platforms. Built for operators and gunsmiths who demand absolute timing accuracy and repeatable zero retention, this collar ensures your suppressor indexes identically every time it's mounted or remounted. Whether you're running dedicated precision rifles, duty weapons, or modular systems, the OCL M4 Collar solves the alignment and consistency challenges that compromise both accuracy and reliability downrange.

Manufactured from aerospace-grade 17-4 precipitation-hardened stainless steel and finished in a Raw Heat Treat Gold coating, the OCL M4 Collar delivers corrosion resistance and durability under high-round-count conditions. The raw heat-treated finish maintains precise tolerances while providing natural lubricity and wear protection in suppressor-mounting applications. At just 0.06 lbs and measuring 1 x 1 x 2 inches, the collar's compact design integrates seamlessly into your barrel assembly without adding significant weight or length, critical for maintaining weapon balance on patrol rifles and short-barreled systems.

The OCL M4 Collar is fully compatible with Ops Inc 12 Model suppressors, Otter Creek Labs AEM5 and OCM5 platforms, and any M4-spec barrel threading system using these silencer families. Law enforcement armories, military units, and civilian precision shooters rely on this collar to eliminate timing drift and maintain sub-MOA consistency across high-round-count missions. Installation is straightforward on standard M4 barrels; ensure your suppressor platform matches the listed compatible models for optimal performance and zero repeatability.