Description
The Hoppe's SGO12 is a no-nonsense shotgun cleaning kit that gives 12-gauge owners the essentials to run a bore brush, work in some solvent, and put a protective coat of oil on the moving parts. It's the plastic box version, so instead of a throwaway clamshell you get a reusable case with a hinged lid and latch that keeps the bottles, brush, and rod sections corralled between cleanings. That box detail matters more than it sounds. Loose cleaning gear tends to scatter to the bottom of a range bag, and having it all snap into one spot saves you the annual scavenger hunt for a missing slotted tip.
What Comes Packed in the SGO12 Kit
Inside you'll find a 2 oz bottle of Hoppe's No. 9 bore cleaner and a 2.25 oz bottle of Hoppe's lubricating oil, the two chemicals that have carried the Hoppe's name since 1903. The No. 9 does the heavy lifting on powder, lead, and plastic wad fouling built up in the bore, while the oil handles rust prevention and keeps the action moving smooth. Rounding it out is a three-piece aluminum cleaning rod, round cotton patches, slotted ends and adapters, and a bronze brush sized specifically for the 12-gauge bore.
Putting the Hoppe's SGO12 to Work
This is a maintenance kit, not a full gunsmithing bench, and that's exactly the point. Run the bronze brush through with a little No. 9 to break up fouling, follow with wet then dry patches on a slotted tip, and finish with a lightly oiled patch. It's the same routine whether you're wiping down a waterfowl gun after a muddy morning in the blind, tidying up a clay bird gun at the end of a day, or just keeping a home-defense 12-gauge honest. The whole process takes a few minutes, and the aluminum rod breaks down to fit right back in the box.
For 12-gauge owners who want dependable, familiar gun care without overthinking it, the SGO12 covers the fundamentals and does it with products that have earned their reputation over more than a century.
Key Specifications
- Manufacturer: Hoppe's
- Manufacturer Part Number: SGO12
- UPC: 026285511352
- Caliber/Gauge: 12 Gauge
- Product Type: Cleaning Kit
- Style: Shotgun
- Bore Cleaner: Hoppe's No. 9, 2 oz
- Lubricating Oil: Hoppe's Lubricating Oil, 2.25 oz
- Cleaning Rod: Three-Piece Aluminum
- Brush Type: Bronze, 12 Gauge
- Tip Features: Slotted Ends and Adapters
- Case Material: Reusable Plastic Box
- Country of Origin: USA
What’s Included
- Hoppe's No. 9 Gun Bore Cleaner (2 oz)
- Hoppe's Lubricating Oil (2.25 oz)
- Three-piece aluminum cleaning rod
- Bronze 12-gauge bore brush
- Round cotton cleaning patches
- Slotted ends and adapters
- Reusable plastic storage box
Frequently Asked Questions
Does the Hoppe's SGO12 kit work on any 12-gauge shotgun?
Yes. The rod, brush, and slotted tips are sized for the 12-gauge bore, so it fits pump, semi-auto, over/under, and single-shot shotguns chambered in 12 gauge. If you own other gauges like 20 or 28, you'd want a kit or brush matched to those bores.
Is this the plastic box version or the clamshell?
The SGO12 is the reusable plastic box version with a hinged, latching lid, which is the one you get with UPC 026285511352. Hoppe's also sells a more basic clamshell version under the SGO12B part number, but this listing is the box kit that keeps everything organized between cleanings.
Can I clean the action and other parts with this kit, or just the bore?
You can do both. The No. 9 solvent and slotted patches handle the bore, while the included lubricating oil is what you use to wipe down and protect the action, hinge pins, and other moving parts. For heavy carbon in tight action areas, some owners add a dedicated action brush, but the basics are covered here.
How often should I use the Hoppe's SGO12 to clean my shotgun?
A good rule of thumb is to clean after every range or hunting session, especially if the gun got wet or muddy. For guns that see occasional use, cleaning after each outing and a quick oil wipe-down during storage keeps corrosion and fouling from building up.





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