Cleaning Beretta Gas Systems


Dear Technoid,

My 390 is very difficult to clean in the gas cylinder area, particularly after 500 or so 500 rounds. Is there anything available that will cut this stuff out quickly, without a lot of scrubbing and reapplying?

Thanks in advance,

Harry

Dear Harry,

To clean the inside of the piston and inside of the piston chamber under the barrel, I usually just spritz it with any gun solvent and rub away for a bit with Scotch Brite. This way you get a dirty finger, but a clean gun.

If the inside of the piston really has gotten cruddy with built-up crusty carbon, then I manually clean it with a stainless steel plumbers pipe-solder brush. You can get them at any home supply place for a couple of dollars each. I use them wet with solvent, but you can do it dry if you wish. These brushes are very aggressive and will remove anything. I’m sure that they scratch hell out of the metal, but I can’t see it so I ignore it. I’ve got a 303 with a whole bunch of rounds through it and no sign of damage from the brush.

Hint: bring the piston with you to the store so that you can make sure to get the right sized brush.

Best regards,

Bruce Buck
The Technoid writing for Shotgun Report, LLC
(Often in error. Never in doubt.)

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One Response to Cleaning Beretta Gas Systems

  1. Ian says:

    A old time competitive Beratta 390 shooter sent me to Harbor Freight Tools. For $4.99 you can buy a packet of 5 brass brushes, of various shapes, prefect for cleaning the barrel piece and the piston. Put them to work in the end of a drill motor, as appropriate to the brush shape and in minutes you’re a happy guy.

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