The Otis Defender Series Cleaning System (brand part no. FG-901-5545), originally developed for the soldier, brings military-grade firearm maintenance to hunters and shooters. It covers 5.56mm and .45 caliber firearms with Memory-Flex cables, a bore brush, a slotted tip, and cleaning patches, all built for proper breech-to-muzzle cleaning. The kit features a Ripcord for quick, one-pass cleaning, plus an all-purpose receiver brush and solid rod sections for a deeper clean when time allows. It’s built for shooters who own both a 5.56mm rifle and a .45 caliber pistol and want one kit that covers both.

Key Specifications

• Covers 5.56mm and .45 caliber firearms in one kit.
• Includes Memory-Flex cables for proper breech-to-muzzle cleaning.
• Features a Ripcord for quick, one-pass cleaning.
• Includes an all-purpose receiver brush for general cleaning.
• Includes solid rod sections for a deeper clean.

Frequently Asked Questions

What calibers does this system cover? 5.56mm and .45 caliber firearms.

Does this kit include a quick-clean option? Yes, the included Ripcord allows a quick, one-pass clean.

Buy the Otis Defender Series Cleaning System

Get military-grade maintenance with Otis Technologies. Browse our full range of gun cleaning kits and supplies and order from our Lubbock, Texas gun shop for fast, insured shipping.