The Springfield Armory Hellcat Pro OSP in Flat Dark Earth is a compact semi-automatic pistol in 9mm Luger. The 3.7-inch Melonite hammer-forged steel barrel sits inside a steel serrated slide with an optic cut. The FDE polymer frame has adaptive textured grip panels. Capacity is 15+1 rounds. Overall length is 6 inches. 
 

Key Specifications 

• Brand: Springfield Armory 
• Model: Hellcat Pro OSP 
• Type: Semi-Automatic Handgun 
• Caliber: 9mm Luger 
• Capacity: 15+1 rounds 
• Barrel Length: 3.7 inches 
• Overall Length (OAL): 6 inches 
• Frame Material: Polymer with Flat Dark Earth Finish 
• Slide Material: Steel with Serrated Finish and Optic Cut 
• Grips: Adaptive Textured Polymer 
• Sight Configuration: Tritium Front, U-Notch Rear 
• Safety Features: Loaded Chamber Indicator 
   

Detailed Features 

• Melonite hammer-forged steel barrel at 3.7 inches. 
• Optic-cut slide ready for red dot mounting. 
• Tritium front sight and U-notch rear for low-light acquisition. 
• Loaded chamber indicator. 
• Adaptive grip texture for grip retention under varying conditions. 
• 15+1 capacity in a 6-inch overall length.

The FDE Hellcat Pro OSP gets the same core feedback as other Hellcat Pro variants: owners appreciate the compact dimensions paired with 15-round capacity -- that combination is the main selling point and it delivers. The FDE color gets positive remarks from owners who prefer it over standard black.

Accuracy and reliability at the range are generally reported as solid with minimal malfunctions across common 9mm loads. The OSP optic-cut draws regular interest from owners who want to add a red dot without a separate milling step.

The trigger pull is the most common complaint -- heavier than some would like. A few owners note the slide serrations are less aggressive than they prefer, which can make manipulations harder in sweaty conditions.