The Otter Creek Arms OCL-701 OPS AE P.T.B. adapter is a specialized suppressor mounting solution built for shooters running Ops Inc AEM5 or OCM5 silencers on non-standard barrel profiles. Where conventional over-the-barrel adapters fall short—on larger-diameter barrels or short-exposure setups—this one-piece past-the-barrel mount steps in to deliver reliable, repeatable suppressor attachment on 1/2"-28 threaded barrels that would otherwise be incompatible. If your hunting rifle, precision rifle, or tactical platform has a muzzle diameter larger than 0.75" or less than 2.95" of exposed barrel threading, this adapter opens up sound suppression options you might not otherwise have.

Machined from H900 heat-treated 17-4 stainless steel, the OCL-701 is built tough for hard use and field reliability. The raw heat-treat finish shows honest steel and won't give away your position with glint. Integrated wrench flats on the rear make installation and removal straightforward—grab an adjustable crescent wrench and you're set. Just keep in mind that this mount adds 2.90 inches to your overall system length, so factor that into your barrel clearance and sight radius before you commit.

One critical note: because this P.T.B. design positions the suppressor end cap significantly farther from the muzzle than traditional adapters, Otter Creek Arms recommends verifying proper concentricity with an alignment rod before firing. If your barrel threads aren't pristine or you pair this adapter with a tight-tolerance silencer bore, misalignment could cause end-cap strikes. A few minutes with an alignment rod upfront beats a damaged suppressor downrange.

The Otter Creek Arms OCL-701 OPS AE P.T.B. adapter is a specialized suppressor mounting solution built for shooters running Ops Inc AEM5 or OCM5 silencers on non-standard barrel profiles. Where conventional over-the-barrel adapters fall short—on larger-diameter barrels or short-exposure setups—this one-piece past-the-barrel mount steps in to deliver reliable, repeatable suppressor attachment on 1/2"-28 threaded barrels that would otherwise be incompatible. If your hunting rifle, precision rifle, or tactical platform has a muzzle diameter larger than 0.75" or less than 2.95" of exposed barrel threading, this adapter opens up sound suppression options you might not otherwise have.

Machined from H900 heat-treated 17-4 stainless steel, the OCL-701 is built tough for hard use and field reliability. The raw heat-treat finish shows honest steel and won't give away your position with glint. Integrated wrench flats on the rear make installation and removal straightforward—grab an adjustable crescent wrench and you're set. Just keep in mind that this mount adds 2.90 inches to your overall system length, so factor that into your barrel clearance and sight radius before you commit.

One critical note: because this P.T.B. design positions the suppressor end cap significantly farther from the muzzle than traditional adapters, Otter Creek Arms recommends verifying proper concentricity with an alignment rod before firing. If your barrel threads aren't pristine or you pair this adapter with a tight-tolerance silencer bore, misalignment could cause end-cap strikes. A few minutes with an alignment rod upfront beats a damaged suppressor downrange.