The Kel-Tec PR57 is a compact-frame semi-automatic pistol chambered in 5.7x28mm with a 4.64-inch stainless steel rotary barrel. It has a 20+1 capacity, a top-loading magazine system, and an optic-ready cut. This variant ships in a Burnt Bronze finish with a black optic-ready slide. 
 

Key Specifications 

• Brand: Kel-Tec 
• Model: PR57 
• Caliber: 5.7x28mm 
• Action: Semi Auto 
• Capacity: 20+1 
• Barrel Length: 4.64" 
• Color/Finish: Burnt Bronze 
   

Detailed Features 

• Compact frame with top-loading magazine design 
• Stainless steel rotary barrel 
• Optic-ready cut on slide 
• 20+1 round capacity in 5.7x28mm 
• Burnt Bronze finish with black optic-ready components

Owners of the Kel-Tec PR57 in Burnt Bronze often cite the finish as the main reason they chose this variant over the standard offerings. The color reads warm in most lighting and tends to age in a way some owners like, developing character with use.

On the mechanical side, the top-loading system and rotary barrel draw the same feedback as the rest of the PR57 family. The 5.7x28mm round runs flat in this compact frame, and the 20+1 capacity is a consistent positive. Ergonomics remain the dividing point, working well for smaller hands and creating reach challenges for larger ones.

Owners mention the optic-ready cut is functional but the mounting adapter situation requires some research before committing to an optic. Overall the PR57 in Burnt Bronze is seen as a capable and visually distinctive pistol, though break-in habits vary from owner to owner.