OTIS MPSR CLEANING KIT – .223/5.56

Proper rifle maintenance starts with the right tools. The OTIS MPSR Cleaning Kit handles .223/5.56 chamber cleaning with professional-grade components that shooters from Antioch to Silicon Valley rely on. Whether you're an FFL dealer in Silicon Valley stocking supplies or maintaining your own rifles, this kit delivers the essentials.

Professional cleaning for modern rifles

The MPSR kit consolidates everything needed for thorough .223/5.56 maintenance into one compact system. OTIS Technologies engineered this for serious shooters who understand that consistent cleaning extends barrel life and maintains accuracy. The 8.7-inch length fits easily in range bags or cleaning stations. For California gun owners navigating regulations and best practices, check our California gun-buyer FAQ to understand your responsibilities after purchase. Browse our gun shop.

Frequently asked questions

Does this kit work for both .223 Remington and 5.56 NATO?

Yes. The OTIS MPSR is designed for both calibers since they share the same bore diameter. Chamber dimensions differ slightly, but cleaning requirements are identical for both cartridges.

What components come inside the MPSR cleaning kit?

The kit includes a modular rod system, bore brushes, patches, and jags sized for .223/5.56. OTIS designed it as a complete field-cleaning solution without requiring separate purchases for basic maintenance.

What is an FFL transfer in California?

An FFL transfer is when a federally-licensed dealer like TacticCAL receives a firearm shipped from another seller and processes California's required DROS paperwork to legally transfer it to you. Looking for gun store Hayward? Visit us in Sunnyvale.