The Browning Buck Mark Micro SR is a single-action semi-automatic pistol chambered in .22 LR with a 4-inch matte black threaded bull barrel. It has a 10+1 capacity and a matte black aluminum frame. The slide has a serrated Picatinny rail and the pistol ships with black overmolded UFX grips. 
 

Key Specifications 

• Brand: Browning 
• Model: Buck Mark Micro SR 
• Caliber: .22 LR 
• Action: Semi Auto 
• Capacity: 10+1 
• Barrel Length: 4 in 
• Color/Finish: Matte Black / Matte Blued 
   

Detailed Features 

• 4-inch matte black threaded bull barrel for muzzle device or suppressor use 
• Single-action trigger 
• Serrated Picatinny rail on slide for optic or accessory mounting 
• Matte black aluminum frame 
• Black overmolded UFX grips

The Buck Mark Micro SR appeals to owners who want a compact rimfire pistol with a threaded barrel and a built-in rail. The 4-inch length makes it noticeably shorter than standard Buck Mark variants, and most find it easy to handle for single-handed shooting or range drills.

The Picatinny rail gets regular mention as a practical feature, letting owners mount a micro red dot without swapping out the slide. The UFX grips are comfortable for most hand sizes, though the compact grip frame can feel pinched for larger hands shooting extended sessions.

Reliability with high-velocity .22 LR is generally well-regarded. The most common complaint is that the threaded barrel requires a thread protector when not in use and Browning does not always include one, which surprises first-time buyers.