The Browning BAR MK3 Speed is a semi-automatic rifle chambered in .308 Win with a fluted 22-inch barrel and a 4+1 capacity. It weighs 6.10 lbs and measures 44.12 inches overall. The aluminum receiver carries a smoked bronze Cerakote finish. The stock is a fixed overmolded grip-paneled unit in a digital camouflage pattern. Twist rate is 1:12"; the receiver is drilled and tapped for optics; safety is crossbolt. 
 

Key Specifications 

• Model: BAR MK3 Speed 
• Caliber: .308 Win 
• Action: Semi-Auto 
• Capacity: 4+1 rounds 
• Barrel Length: 22 inches 
• Overall Length: 44.12 inches 
• Weight: 6.10 lbs 
• Trigger: Gold Plated 
• Safety: Crossbolt 
• Stock: Fixed Overmolded Grip Paneled, Digital Camouflage 
• Twist Rate: 1:12" 
• Receiver Material: Aluminum 
• Sights: Drilled & Tapped 
   

Features 

The fluted barrel trims weight and sheds heat faster than a straight-profile barrel of the same length. The gold-plated trigger has a cleaner feel than a standard BAR trigger. The crossbolt safety is easy to reach without shifting grip. At 6.10 lbs for a .308 semi-auto, the aluminum receiver and fluted barrel work together to keep the rifle manageable in the field.

Owners appreciate the MK3 Speed's construction and the way the fluted barrel affects both weight and the rifle's overall look. Accuracy at longer ranges is a recurring positive point, particularly for big-game hunting use.

The semi-automatic action gets consistent praise for cycling smoothly and allowing quick follow-up shots. Ergonomics come up often as well. The overmolded grip panels and overall balance make it comfortable during longer sessions.

On the critical side: the price is higher than many competing .308 semi-autos and that draws ongoing discussion. Some users also find it heavier than they expected for field carry, particularly on longer hikes. A few owners mention that the rifle shows some preference for certain ammunition types, requiring some load testing before finding what runs best. Aftermarket customization options are more limited than on AR-pattern platforms, which matters to some buyers.