Otter Creek Arms Ocl-441 Otb Flash Hider Black Nitride 5/8X24

The Otter Creek Arms OCL-441 OTB Flash Hider is a one-piece muzzle device and mounting adapter designed for shooters running OPS 12th model suppressors (OCM5 or AEM5) on standard 5/8x24 threaded barrels. Built from H900 heat-treated 17-4 stainless steel and finished in durable black nitride, this flash hider combines straightforward suppressor mounting with effective muzzle flash reduction. If you're tired of piecing together custom collars or paying for barrel work just to thread a suppressor, this integrated design eliminates that hassle entirely.

The OCL-441 works by consolidating two jobs into one component: it threads directly onto any 5/8x24 barrel with 0.75" or less outside diameter and a minimum of 2.05" of exposed barrel measured from the shoulder. That straightforward compatibility means you can move it between rifles, swap suppressors, and adapt your setup without gunsmith intervention. The black nitride coating resists corrosion and rounds out a professional appearance on any build, whether you're chasing precision at the range or running a duty gun.

Otter Creek Arms has built a reputation for no-nonsense mounting solutions, and this flash hider reflects that philosophy—clean execution, solid steel, and the kind of fit-and-forget reliability that shooters actually rely on. Whether you're outfitting a precision rifle, a hunting setup, or a modular platform, the OCL-441 simplifies the suppressor integration without compromise.

Key Features

• One-piece integrated flash hider and OPS 12th suppressor mount
• H900 heat-treated 17-4 stainless steel construction
• Black nitride finish for corrosion resistance
• 5/8x24 thread pitch—fits standard barrels
• No custom collars or barrel modification required
• Compatible with OPS 12th model OCM5 and AEM5 suppressors

Specifications

Frequently Asked Questions

Will this flash hider work on my AR or precision rifle?

Yes, as long as your barrel has 5/8x24 threads, an outside diameter of 0.75" or less, and at least 2.05" of exposed barrel measured from the shoulder. Most standard modern rifle barrels meet these specs.

Which suppressors does the OCL-441 mount?

This flash hider integrates with OPS 12th model suppressors, specifically the OCM5 and AEM5. It's designed to mate with those platforms directly.

Do I need a gunsmith to install this?

No. The OCL-441 threads onto any standard 5/8x24 barrel without custom collars, custom barrel work, or special tools. It's a straightforward threaded installation.

Is the black nitride finish durable?

Black nitride is a time-tested finish for firearms components, offering good corrosion resistance and a professional appearance. It holds up well in field use and regular shooting.