Otter Creek Arms Ocl-641 Ops Ae Flash Hider Black Nitride 5/8X24

The Otter Creek Arms OCL-641 Ops AE flash hider is a purpose-built muzzle device designed for shooters running suppressor-ready setups with OPS Inc suppressor models. This 5/8x24 thread pitch flash hider pairs the proven flash-reduction geometry of the OPS platform with a rugged construction that handles precision rifle duty and hard use. Built from H900 heat-treated 17-4 stainless steel and finished in black nitride, it's engineered to withstand the thermal and mechanical stresses of repeated fire while maintaining a low visual signature downrange—a critical feature for tactical applications, low-light hunting, or any shooting where flash signature matters.

The OCL-641 is compatible with OPS Inc 12th Model AEM5 and OCM5 suppressors, making it a smart choice if your system already runs those cans or you're planning to add one. The wrench flats mean you can install and remove it without special tools, and the pre-drilled hole accommodates pin-and-weld work if your state or application requires permanent installation. The black nitride finish resists corrosion and blends seamlessly with modern rifle builds.

Whether you're setting up a precision long-range rifle, a duty gun, or a hunting platform where flash control serves tactical or aesthetic purposes, the OCL-641 delivers OPS-platform reliability in a no-nonsense form.

Key Features

• H900 heat-treated 17-4 stainless steel construction for durability and thermal resistance
• Black nitride finish for corrosion resistance and low-profile appearance
• Wrench flats for tool-assisted installation and removal
• Pre-drilled hole for pin-and-weld permanent installation
• Compatible with OPS Inc 12th Model AEM5 and OCM5 suppressors
• 5/8x24 thread pitch—standard for modern rifle platforms

Specifications

Frequently Asked Questions

What suppressors does the OCL-641 work with?

The OCL-641 Ops AE flash hider is designed to be compatible with OPS Inc 12th Model AEM5 and OCM5 suppressors.

What thread pitch is this flash hider?

The OCL-641 features a 5/8x24 thread pitch, which is the standard thread size for modern rifle muzzles.

Can I permanently install this flash hider?

Yes. The OCL-641 includes a pre-drilled hole that accommodates pin-and-weld installation for permanent mounting, if required by your state or application.

Do I need special tools to install it?

The flash hider has wrench flats, so you can install and remove it using standard wrenches without proprietary tools.