Kel-Tec SUB-9 9mm Folding Carbine, S&W Model 59 Magwell, 16 in Barrel, Aluminum-Alloy Receiver
This Kel-Tec SUB-9 stands out as a folding 9mm carbine configured with the S&W model 59 magwell. It pairs a 16-inch steel barrel with machined aluminum-alloy receiver plates, a tubular steel stock, and sighting provisions. The design folds by hinging the barrel/fore-end assembly to the receiver and locks using a rear over-center latch, with release via a knurled under-barrel collar. Made in the USA with right-side ejection, it offers a compact, purpose-built package for those who value portability and durable construction.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: The exterior shows scattered cosmetic imperfections including scratches, small blemishes, and areas of finish loss. The bore is clean and bright. No magazine is included.
What’s Included
- Kel-Tec SUB-9 9mm folding carbine (S&W Model 59 magwell)
- Magazine not included
The SUB-9 is a folding 9mm carbine with a hinged barrel and fore-end assembly that folds over the receiver. It locks in place via a rear over-center latch and is released by a knurled collar located under the barrel, enabling a compact footprint when stored or transported.
This example features the S&W Model 59–pattern magwell, designed to accept magazines of that pattern. It includes factory-style sighting provisions; specific sight components may vary.
Construction focuses on light yet sturdy materials: machined aluminum-alloy receiver plates, an aluminum-alloy frame, a steel barrel, and a tubular steel stock capped with a ribbed polymer buttplate. The handguard is polymer with ribbing and cooling slots, and the pistol grip is checkered polymer for secure handling.
Operation is semi-automatic with straight-blowback cycling and right-side ejection. A cross-bolt safety provides straightforward control. Length of pull measures 13.5 inches, and the 16-inch barrel keeps the package practical while maintaining the carbine’s folding utility.
Made in the USA, this SUB-9 reflects Kel-Tec’s early folding-carbine concept with materials and features chosen for portability, durability, and simple function. Its S&W model 59 magwell configuration adds magazine commonality within that pattern and rounds out a distinctive, collectible 9mm carbine format.