Authentic .960 Rowland® Magnum Powered Sleeper conversion for 9mm pistols. Convert your 9mm handgun into .357 Magnum power with a .960 Rowland Conversion

For $223 we will convert your stock 9mm barrel to cycle .960 Rowland.

You will still be able to cycle regular 9mm through your converted barrel with no loss of performance or accuracy.

Your stock barrel must be at least 4″ long.

We want to stick with that 4″ barrel or greater because typically when barrels get shorter than that, you start getting into the subcompact territory.
With subcompact guns recoil assemblies get smaller and slide weights get dramatically lighter, two factors that are important to reliably cycling the 960 Rowland cartridge.

After placing your order please ship us your stock 9mm barrel with your name and order number attached.

After we receive your barrel, we will complete the conversion process and ship it back to you.

Please feel free to contact us with any questions.