Meet the New Big-Bore 450 Bushmaster!

Bushmaster’s newest big-bore Bushmaster is now shipping. (Photo: Bushmaster)

Bushmaster Firearms is happy to announce a newly designed AR-based rifle chambered for .450 Bushmaster called simply the 450 Bushmaster. This full-size thumper is built to minimize felt recoil while staying as light as possible.

“The 450 Bushmaster rifle has been designed to significantly reduce felt recoil and is dedicated for hunting deer, bear and boar,” said Bushmaster in the announcement. “Our lighter weight rifle is an ideal choice for all hunters.”

Weighing in at a hair over 7 pounds dry, the 450 Bushmaster really is light enough to carry around all day, even with other accessories including a sling and an optic. Like virtually all hunting rifles it’s sold “optics-ready” and leaves that personal decision to the shooter.

The big-bore rifle keeps recoil to a minimum with a 20-inch rifle length barrel and a rifle buffer and an A2-length fixed stock. The 450 Bushmaster also comes fitted with a beefy 4-port Snake Charmer muzzle brake which will also help control the muzzle.

The DM2s is a light two-stage trigger now available for purchase separately for $129. (Photo: Bushmaster)

The barrel is threaded with 11/16×24 threads for use with other muzzle devices and has a 1-in-24 inch twist. It uses a carbine-length gas system, an A2 pistol grip and ships with a 5-round aluminum magazine.

The 450 Bushmaster has a standard anodized hard coat finish on the receivers and BFI 14-inch modular M-Lok handguard and a salt bath nitride finish on the bolt carrier group and barrel. The rifle comes with a DM2S two-stage trigger and standard controls including the charging handle, selector lever, magazine release and forward assist.

See Also: The One-Shot-and-Drop Round, the 450 Bushmaster

The stock provides a 6-o’clock sling swivel and the handguard offers two additional quick-detach sling sockets at the rear, and of course accepts a wide range of other sling mounting systems with M-Lok adapters.

Overall the rifle measures 40 inches long, which is longer than your average AR carbine but typical compared to a traditional hunting rifle.

Popular with a wide range of hunters, .450 Bushmaster is a flat-shooting cartridge inside of 200 yards and still very capable at 250 yards and out. A straight-wall cartridge, it also conforms to many state and local hunting requirements that prohibit other rifle cartridges.

The 450 Bushmaster has a list price of $1,329. For more information visit Bushmaster today.

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About the author: Max Slowik is a writer with over a dozen years of experience and is a lifelong shooter. He has unwavering support for the Second Amendment and the human right to self-defense. Like Thomas Paine, he’s a journalist by profession and a propagandist by inclination.

{ 10 comments… add one }
  • Montana October 25, 2021, 2:10 pm

    I guess my question is what would you use it for besides shooting bears? Maybe it would be useful to stop a car engine or shoot thru a cab or a vehicle.

  • DrThunder88 October 25, 2021, 1:36 pm

    I’d be more interested to see a manufacturer building a large-frame AR in 45 Raptor, but there are probably additional hurdles that would make that unlikely.

  • E October 23, 2021, 2:33 pm

    AR15 in 450bm rocks for Ohio deer hunting! It uses the same sst bullet as my 12ga slug gun.

    I was fortunate enough to take a very nice buck while sitting in a stand with my son for the first time.
    Put another one together for him. Using an h2 buffer it kicks way less than a 12ga slug gun. My 11 year old can hit confidently out to 100yards without flinching.

    I used a 350 legend last year, dropping another great buck at 40 yards. The 450bm seems to have better knock down power, especially at the longer ranges. 450bm dropped a doe where it stood @ 199yards. A buddy I hunt with scored on four deer using the 450, none have went far.
    The 350 may have an advantage as home defense or battle rifle do to weight, cost, and mag capacity. However 450 is a thumper with specs not far off 458 socom so it shouldn’t be counted out for specific tasks.

    This season I’m going to try a ar pistol in 350 legend limiting myself to 100yards. I chose the 350L do to its lighter recoil.

    Keep the innovation coming. Good luck to all of the hunters this upcoming season

  • Robey Alan Gulledge October 20, 2021, 2:24 pm

    I tend to gravitate to calibers where I can pick up extra ammo on the battlefield.
    It’s tough enough to find commonly used caliber ammo, let alone some low performance cartridge like the .450 . The 6.5 ARC is the future.

    • Zupglick October 22, 2021, 10:37 am

      Tell me how good that 6.5 ARC is when you have a 1200 lbs. Grizzly trying to eat you.

      • DrThunder88 October 25, 2021, 1:30 pm

        Not to mention your chances of finding 6.5 ARC “on the battlefield” are about the same as finding 450 Bushmaster.

        • Gandalf October 26, 2021, 6:11 pm

          I’ve never heard of the 6.5ARC but I have heard of and seen 6mm ARC ammo.

    • Handgunner January 27, 2022, 9:16 am

      When was the last time you were in a battle field here in the US? Also the 450 is a great Deer cartridge that was designed for the AR platform and for states that allow straight walled cartridges.

  • James October 20, 2021, 10:16 am

    Would like to see this rifle chambered in the following cartridges:
    401 WSL
    475 Wildey
    50 Action

    • jack October 22, 2021, 7:48 am

      Wildey? There’s a name I haven’t heard in a loooong time, I had one of their pistols years ago but got rid of it because the brass was a major pain to make, are they even still in business?

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