The Kel-Tec SU-16C is a semi-automatic rifle chambered in .223 Rem with a 16-inch barrel. It has a folding carbine stock configuration and a 10+1 capacity in a black finish. 
 

Key Specifications 

• Brand: Kel-Tec 
• Model: SU-16C 
• Caliber: .223 Rem 
• Action: Semi Auto 
• Capacity: 10+1 rounds 
• Barrel Length: 16 in 
• Finish: Black 
   

Detailed Features 

• 16-inch barrel in .223 Rem 
• Folding carbine stock 
• 10+1 round capacity 
• Black polymer construction

Owners of the Kel-Tec SU-16C generally respond well to the folding stock design, which makes the carbine compact for transport and storage. The lightweight build is another draw, particularly for buyers looking for a packable .223 Rem rifle that does not require the full AR-pattern form factor.

Reliability opinions on the SU-16C are mixed. Some owners report smooth operation through standard ball ammunition, while others encounter feeding or ejection issues that require troubleshooting. The polymer construction, which keeps weight down, is also the focus of durability criticism from shooters who compare it to all-metal alternatives.

The SU-16C attracts a specific buyer, often someone prioritizing compactness and a lower entry cost over match-grade ergonomics. The folding stock and .223 Rem chambering make it practical as a truck gun or range rifle, but competition or duty-focused shooters tend to look elsewhere.