The dual gas-vent system in the Mossberg 930/935 vents the excess gases, which aids in lowering recoil. This system, including gas piston rings, require routine maintenance to keep it running efficiently. To ensure you are cleaning it correctly, we invite you to view this Video by World Champion shooter Jerry Miculek as it demonstrates how to completely disassemble and maintain the Mossberg 930/935 platform.
Modified on: Wed, 11 Jan, 2017 at 4:02 PM
Did you find it helpful?Send feedback
Sorry we couldn't be helpful. Help us improve this article with your feedback.