Product Description The Otter Creek Arms OCL202 M4 Collar is a precision-machined locating collar engineered for M4 specification barrels, as well as the Ops Inc 12th Model, AEM5, and OCM5 suppressor systems. Manufactured from H900 heat treated 17-4 stainless steel, this collar delivers outstanding strength, dimensional stability, and corrosion resistance to handle the rigors of demanding shooting environments. The raw heat treat finish preserves the integrity of the steel while ensuring tight tolerances and reliable barrel alignment every time. Product Highlights Precision-machined locating collar designed for M4 spec barrels and Ops Inc 12th Model, AEM5, and OCM5 compatibility Constructed from H900 heat treated 17-4 stainless steel for superior hardness and long-term durability Raw heat treat finish maintains the natural integrity and strength of the steel Ensures accurate barrel alignment and consistent positioning for reliable suppressor fitment Professional-grade component built to exacting standards by Otter Creek Arms Specs Brand: OTTER CREEK ARMS LLC MPN: OCL202 UPC: 664533659045 Material: H900 Heat Treated 17-4 Stainless Steel Finish: Raw Heat Treat Compatibility: M4 Spec Barrels, Ops Inc 12th Model, AEM5, OCM5 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer. ]]>