The Otter Creek Arms OCL941 OTB muzzle brake/suppressor adapter delivers a clean, integrated solution for shooters running short-barreled rifles or other platforms where suppressor mounting space matters. Built as a 1-piece unit from H900 heat-treated 17-4 stainless steel, this 5/8x24 threaded adapter pairs OTB flash-hiding performance with the ability to mount OPS 12th gen OCM5 or AEM5 suppressors. If you're working with a compact build, a short-barreled rifle, or any platform where barrel length is at a premium, this adapter lets you add suppression without sacrificing your muzzle device footprint.

The construction is built tough for long-term use. H900 heat-treated 17-4 steel resists corrosion and holds up to sustained fire and the vibration of suppressor-equipped shooting. The 5/8x24 thread pattern is standard across most modern rifle platforms, making compatibility straightforward for AR platforms, bolt guns, and other systems running this common thread spec.

Installation requires a few practical considerations: your barrel must measure 0.75 inches or less in diameter, and you'll need a minimum of 2.05 inches of exposed barrel length, measured from the shoulder, to mount the adapter cleanly. These specs ensure proper fitment and reliable operation without contact with foregrips or rail systems. If you're building a compact or short-barreled setup and want to run a suppressor without adding bulk at the muzzle, this adapter is engineered for that role.

The Otter Creek Arms OCL941 OTB muzzle brake/suppressor adapter delivers a clean, integrated solution for shooters running short-barreled rifles or other platforms where suppressor mounting space matters. Built as a 1-piece unit from H900 heat-treated 17-4 stainless steel, this 5/8x24 threaded adapter pairs OTB flash-hiding performance with the ability to mount OPS 12th gen OCM5 or AEM5 suppressors. If you're working with a compact build, a short-barreled rifle, or any platform where barrel length is at a premium, this adapter lets you add suppression without sacrificing your muzzle device footprint.

The construction is built tough for long-term use. H900 heat-treated 17-4 steel resists corrosion and holds up to sustained fire and the vibration of suppressor-equipped shooting. The 5/8x24 thread pattern is standard across most modern rifle platforms, making compatibility straightforward for AR platforms, bolt guns, and other systems running this common thread spec.

Installation requires a few practical considerations: your barrel must measure 0.75 inches or less in diameter, and you'll need a minimum of 2.05 inches of exposed barrel length, measured from the shoulder, to mount the adapter cleanly. These specs ensure proper fitment and reliable operation without contact with foregrips or rail systems. If you're building a compact or short-barreled setup and want to run a suppressor without adding bulk at the muzzle, this adapter is engineered for that role.