Korth Mongoose 3 inch .357 Magnum DA/SA Revolver, Dual Cylinder Combo with 9x19 Spare, Black DLC, Walnut Grips
This German-made Korth Mongoose stands out as a 3 inch DA/SA revolver with a factory dual cylinder combo, including a dedicated 9x19 mm spare cylinder on its own yoke/crane assembly. It features billet-steel construction with a black DLC finish, a 416R hammer-forged barrel, and Korth's roller-bearing trigger system. CIP proof marks and Nighthawk Custom import markings are present, and the package includes factory test targets and a QC tag documenting trigger weights.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are a few superficial scratches and small blemishes visible on the exterior surfaces.
What's Included
- Factory 9x19 mm spare cylinder on yoke/crane assembly (marked 9x19/Korth DE)
- Nighthawk Custom cone/side screw removal tool (REV-A0031)
- Assorted tools
- Factory test-fired spent casing
- Nighthawk Custom factory test targets
- Nighthawk Custom instruction manual
- Korth green QC/inspection tag
- We The People Holsters Kydex OWB holster
- Leather OWB belt holster (brand not legible)
- Speed loaders
- Safariland belt speedloader holders/carriers
- Korth factory box
- Nighthawk Custom drawstring pouch for spare cylinder
The Mongoose is a six-shot DA/SA revolver built from billet steel and finished in black DLC for durability. Its 3 inch 416R stainless steel barrel is hammer-forged and features a heavy underlug, full-length shroud, and serrated rib. The ejector rod is fully shrouded, and the cylinder release is positioned behind the hammer.
Korth's roller-bearing trigger system delivers a refined double-action and single-action pull. A skeletonized hammer spur and polished trigger face complement the action. The included QC/inspection tag lists DA 3800 g and SA 1500 g, dated 30.11.18.
Sighting is fast and precise with a ramped blade front sight featuring a gold bead and a fully adjustable rear sight. The revolver wears smooth Turkish walnut wood grips that complete the classic Mongoose profile.
This example is a dual cylinder combo: the primary cylinder is marked .357 Magnum with CIP proofs, and the spare cylinder is marked 9x19 and Korth DE. Capacity is 6 rounds per cylinder. Markings include the Korth round logo on the left sideplate, the Nighthawk hawk emblem on the right, CIP proof marks, and the Nighthawk Custom import stamp from Berryville, AR. The package includes Nighthawk test targets dated 2019 and 2021 for a 3 inch Mongoose.