Description
The BAR has been the benchmark for autoloading hunting rifles since Bruce Browning put the original civilian version on the map, and the MK3 Speed is the leanest, toughest take on that design yet. This one is chambered in .300 Winchester Magnum, which puts elk, moose, and long shots on mule deer squarely on the table. The short-stroke gas piston system does double duty here, cycling the action reliably while soaking up a noticeable chunk of magnum recoil. Pair that with the Inflex recoil pad and this rifle is far more pleasant to shoot than a lightweight bolt gun in the same chambering.
What Makes the BAR MK3 Speed Shoot Like a Bolt Gun
The heart of the rifle is a seven-lug rotary bolt that locks directly into the barrel for a tight, consistent breech-to-chamber relationship, with three rings of steel surrounding the cartridge. A rigid action bar and inertia block link-up cuts down barrel vibration, and the 24 inch hammer-forged barrel is fluted to shed weight and help with cooling. An integral buffering system reduces wear on the operating parts, so this is a rifle built to run for decades. Rounds feed from a detachable 3-round box magazine that clips into a hinged floorplate, which means fast swaps in the field without fumbling for a loose mag in the snow.
Built for the Backcountry, Finished for the Weather
Smoked Bronze Cerakote covers the barrel and alloy receiver, offering better protection than traditional bluing when the forecast turns ugly. The composite stock wears Browning's OVIX camo and features overmolded grip panels for a sure hold with cold or wet hands. It is also shim-adjustable for cast and drop at the comb, so you can dial the fit to your build and your optic height. Speaking of optics, the receiver comes drilled and tapped with no iron sights, ready for the scope of your choice.
For hunters who want magnum punch with a quick second shot on tap, this MK3 Speed is about as refined as autoloading hunting rifles get.
Key Specifications
- Model: BAR MK3 Speed
- Manufacturer Part Number: 031072229
- UPC: 023614852476
- Caliber: .300 Winchester Magnum
- Action: Semi-Auto, Short-Stroke Gas Piston
- Barrel Length: 24" Fluted, Hammer-Forged
- Capacity: 3+1
- Magazine: Detachable Box with Hinged Floorplate
- Receiver: Aluminum Alloy, Drilled and Tapped
- Finish: Smoked Bronze Cerakote
- Stock: Composite, Browning OVIX Camo, Shim-Adjustable
- Recoil Pad: Inflex
- Sights: None, Optics Ready
- Weight: 7 lbs 8 oz
What’s Included
- Browning BAR MK3 Speed rifle
- One 3-round detachable box magazine
- Cable lock
- Owner's manual
Frequently Asked Questions
Does the Browning BAR MK3 Speed come with sights or a scope?
No, this model ships without iron sights or an optic. The alloy receiver comes drilled and tapped from the factory, so mounting a scope base and rings is quick and straightforward. Most buyers pair it with a quality hunting scope in the 3-9x or 4-12x range for big game work.
How bad is the recoil on a .300 Win Mag semi auto like this?
Noticeably softer than a bolt action in the same chambering. The short-stroke gas piston system absorbs a good portion of the recoil impulse as it cycles, and the Inflex recoil pad takes another bite out of what reaches your shoulder. It is one of the more comfortable ways to shoot a .300 Win Mag, which makes practice sessions a lot more productive.
Is the magazine on the BAR MK3 Speed detachable?
Yes, it uses a detachable 3-round box magazine that locks into a hinged floorplate on the bottom of the receiver. You can drop the floorplate and swap in a loaded spare quickly, or top off the magazine while it stays attached. One magazine is included, and spares are a smart addition for extended hunts.
Can the stock be adjusted to fit me better?
It can. The composite stock is shim-adjustable for cast on/off and drop at the comb, so you can fine tune how the rifle mounts and how your eye lines up behind a scope. That kind of fit adjustment usually costs extra on a custom gun, and it makes a real difference for consistent cheek weld and faster target acquisition.




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