Description
There's a reason the BAR name has stuck around for over a century. The lineage traces back to John Browning's original design, and the MK4 Hunter carries that torch as one of the only semi-auto platforms that handles true magnum cartridges without breaking a sweat. Chambered in .300 Winchester Magnum, this rifle is built for the hunter who wants elk and moose stopping power with the speed of an autoloader.
Why the BAR MK4 Hunter Tames the .300 Win Mag
The gas piston operating system does something a bolt gun simply can't: it spreads the recoil impulse out over a longer cycle, so a stout magnum load feels noticeably softer on the shoulder. Pair that with the Inflex recoil pad and you've got a rifle you can practice with comfortably, which matters more for field accuracy than most people admit. Inside, a seven-lug rotating bolt locks directly into the barrel for a tight breech-to-chamber relationship, while the action bar and inertia block link-up cuts down barrel vibration. An integral buffering system reduces wear on the internals so the action stays smooth over years of hunting seasons.
Built for the Field, Fitted to You
The 24 inch fluted barrel wears a non-reflective matte blued finish that won't flash sunlight at a wary bull, and the fluting trims weight while helping the barrel shed heat. The composite stock shrugs off rain and rough truck rides, with overmolded gripping panels that stay tacky when things get wet. Browning also includes shim adjustments for cast and drop at the comb, plus a raised SoftFlex cheekpad, so you can dial in proper eye alignment behind your scope instead of adapting your face to the rifle. The lightweight alloy receiver comes drilled and tapped, ready for the glass of your choice.
Feeding comes from a detachable box magazine, and at 50.25 inches overall, the MK4 Hunter balances like a hunting rifle should. If your idea of a perfect fall involves long glassing sessions and one honest shot opportunity at something big, this is a rifle worth building your season around.
Key Specifications
- Manufacturer: Browning
- Model: BAR MK4 Hunter Composite
- Manufacturer Part Number: 039007229
- UPC: 023614861911
- Caliber: .300 Winchester Magnum
- Action: Gas Piston Semi-Auto
- Barrel Length: 24" Fluted
- Barrel Finish: Non-Reflective Matte Blued
- Receiver: Lightweight Aluminum Alloy, Drilled & Tapped
- Stock: Composite Synthetic, Shim-Adjustable with SoftFlex Cheekpad
- Recoil Pad: Inflex
- Magazine Type: Detachable Box
- Overall Length: 50.25"
- Sights: None (Optics-Ready Receiver)
- Bolt: Seven-Lug Rotating Bolt
What’s Included
- Browning BAR MK4 Hunter rifle
- One detachable box magazine
- Owner's manual
Frequently Asked Questions
How does the recoil of the BAR MK4 Hunter in .300 Win Mag compare to a bolt action?
Noticeably softer. The gas piston system uses some of the cartridge's energy to cycle the action, spreading the recoil impulse over a longer period instead of delivering it all at once. Combined with the Inflex recoil pad, most folks find this rifle far more pleasant to shoot than a bolt gun in the same chambering, which makes range practice a lot more productive.
Does the Browning BAR MK4 Hunter come with sights or a scope?
No, this model ships without iron sights or optics. The alloy receiver comes drilled and tapped from the factory, so you just need a set of bases and rings to mount the scope of your choice. Given the reach of the .300 Win Mag, quality glass is the way to go on this rifle.
Can I adjust the stock fit on the BAR MK4 Hunter?
Yes. Browning includes a shim system that lets you adjust both cast on/off and drop at the comb, so you can tune the stock to your build and get consistent eye alignment behind your scope. The raised SoftFlex cheekpad also gives you a comfortable, repeatable cheek weld for optic use.
Is the BAR MK4 Hunter accurate enough for long-range big game hunting?
The BAR has long been known for delivering accuracy that rivals many bolt actions. The seven-lug rotating bolt locks directly into the barrel for consistent lockup, and the action bar and inertia block design reduces barrel vibration during the firing cycle. With good ammo and quality glass, it's well suited for elk, moose, and other big game at practical hunting distances.





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