Otis FGRC520 Ripcord 20 Gauge Shotgun Bore Cleaner - 8-32" Thread, Nomex/Rubber, 45" Long
Otis Technology
The Otis FGRC512 Ripcord 12 gauge shotgun cleaner is a one-pass breech-to-muzzle cleaning tool built for serious shotgunners who want fast, effective fouling removal without fuss. At 45 inches long with standard 8-32" threads, this ripcord-style cleaner combines a molded rubberized core with heat-resistant Nomex fibers to trap and strip away powder residue, lead, and carbon in a single pull. Whether you're breaking in a new gun, maintaining a hunting shotgun, or keeping a clay-shooting rig in top shape, this is the kind of no-nonsense gear that does the job right.
What makes the Ripcord different from traditional patch-and-brush systems is how it works: the Nomex outer layer acts as both a brush to loosen fouling and a patch to capture it, while the rubberized helix core keeps aggressive 360-degree contact with the bore throughout the stroke. The result is thorough cleaning in fewer passes than you'd need with conventional methods. Because it's made from the same Nomex material used in firefighter and racing suits, it won't melt or degrade even in a hot barrel—rated heat-resistant to 700°F, so you can run it through immediately after shooting if you need to.
The threaded solid brass ends won't scratch your bore, and the standard 8-32" threads let you add other Otis cleaning components if you want to customize your setup. This is a specialized tool: use it only for 12 gauge, pull it breech-to-muzzle, and repeat as needed until your bore is clean. It's also effective for safe obstruction removal if you ever have a jammed case or similar blockage.
| Caliber/Gauge | 12 Gauge |
| Length | 45" |
| Thread Size | 8-32" |
| Core Material | Molded Rubber |
| Outer Material | Nomex Fibers |
| Heat Resistance | Up to 700°F |
| End Material | Coated Solid Brass |
No. This cleaner is designed specifically for 12 gauge shotguns. Using it on other calibers will result in poor fit and cleaning performance. Otis makes caliber-specific ripcords for other gauges and calibers.
Yes. The 8-32" threaded ends allow you to add compatible Otis cleaning accessories to customize your cleaning kit if desired.
Insert the longer, narrower end into the chamber and feed it out through the muzzle, pulling in the breech-to-muzzle direction. Repeat passes as needed until the bore is clean.
Yes. The Ripcord is effective for safe removal of obstructions like jammed cases, but always use it only for your 12 gauge shotgun and follow proper safety procedures.