Our Lineup of The Quietest 450 Bushmaster Suppressors
October 7, 2025Posted by derrek.sigler
The 450 Bushmaster cartridge came into existence and was immediately presented as a big-caliber option for AR-15 lowers. At the time, the Bushmaster Firearms Company was the primary developer, hence the name, and a lot of initial interest spurred some sales. Those sales would fizzle and interest waned, that is, until the rise in popularity of straight-walled cartridges being used in areas previously only open to the use of shotgun slugs and blackpowder rifles for deer hunting. America went looking for a big caliber, straight-wall round, and seemingly overnight, there was a second love affair with the 450 Bushmaster once more. Add a suppressor to the mix, with a big round that is readily subsonic, and you have a pretty sweet hunting rifle. We have a nice lineup of quietest 450 Bushmaster suppressors, too.
Understanding the 450 Bushmaster
Noted gun writer and founder of Gunsite, Jeff Cooper, is due some of the credit for the existence of the 450 Bushmaster. His desire for a .40+ caliber cartridge fired from a rifle that was capable of taking down game out to 250 yards led to the development of the .45 Professional cartridge.
The .450 Bushmaster used to be an AR-15 cartridge, but it has found popularity with bolt-action rifles as a big straight-wall option. It is loud and powerful, making it a great option to be suppressed. Photos by Ryan Grant. (Renn Svensen, hand model.)
In order to accommodate an existing bullet manufactured by Hornady, they shortened the case length and the overall length so that this new cartridge would fit in the AR-15, which was more popular than the AR-10. With development complete, the name 450 Bushmaster was adopted and the rest is history.
Choosing the Best Suppressor for the 450 Bushmaster
There are a number of things that come into play when choosing a suppressor, and they're just as important whether you're looking to suppress something as small as .22LR or as large as 450 Bushmaster. Here's what we think are most important:
Sound Reduction
The whole point of using a suppressor is to drop the decibels, so be sure to look at test specs to see what kind of decibel reduction a given suppressor offers for the caliber you'll be shooting - in this case, 450 Bushmaster.
Recoil Management
One of the best extra benefits of using a suppressor is that it helps reduce recoil. This is especially helpful on larger calibers like the 450 Bushmaster. If you're planning on a full day of shooting, the less recoil you experience, the better. Plus, less recoil can help make you a better shot.
Weight
Big bore suppressors can be heavy, and adding a suppressor to the end of your barrel will change the balance of the gun. Be sure to consider how much weight you'll be adding and whether or not it's an amount that you can live with long term in multiple situations.
Length
Putting a suppressor on your gun makes it longer. If you're running an already long barrel, you want to make sure that the extra suppressor length isn't going to make the gun unwieldy.
Durability
Whatever suppressor you choose to buy is a long term investment. Take into consideration how the suppressor is made and how that will translate into durability and longevity.
Top Suppressor Models for the 450 Bushmaster
There are more suppressors on the market today than ever before. This is both good and bad news. The good news is that it's truly a buyer's marker. The bad news is that it can make picking the right one a bit of a challenge. That's why we've put together this list of what we consider to be the best 450 Bushmaster suppressors available today.
Dead Air Primal
Dead Air’s multi-purpose .46 caliber Primal can handle everything from big-bore, high-pressure rifle cartridges, as well as low-pressure pistol rounds and anything in between. It is one of Dead Air’s most adaptable suppressors. It makes a great 450 Bushmaster suppressor and is very quiet
It features direct thread simplicity and can work with quick-attach KeyMo, Xeno, pistol boosters, and 3-lug mounts for sub-gun platforms. This is due to the use of 1.375-24 in. rear threads and Dead Air’s HUB to P-Series adapter. It comes with a 5/8-24 direct thread mount and the HUB to P-Series adapter. The Primal is ready for Nomad, Wolfman, and Ghost compatible mounts, right out of the box.
The Hybrid 46M is a modular centerfire rifle suppressor that allows for the removal of a front module which provides the shooter with a shorter and lighter suppressor body still capable of effectively suppressing all centerfire pistol cartridges as well as rifle offerings as large as .45-70 Govt and .458 SOCOM, so it will easily handle the 450 Bushmaster. It weighs less than one pound even in its longest configuration.
The Hybrid 46M is rated up to .460 Weatherby Magnum, and both long and short configurations are full-auto-rated.
Advantages:
Even in its full configuration, it's still the lightest suppressor on this list
Shortest on the list in its small configuration and on par with others in full configuration
The Obsidian45 strikes a perfect balance between durability and lightweight design. Rugged's ADAPT™ Module introduces modularity, enabling users to select between the full configuration, measuring 8.6 inches and weighing 12.8 ounces, and the compact configuration, measuring 6.7 inches and weighing 10.7 ounces.
Obsidian45 baffles are machined from 17-4 stainless steel, offering easy cleaning options and heightened durability. In addition, it's belt-fed rated for pistol calibers up to 45ACP.
This .45 caliber suppressors rated to handle the 450 Bushmaster. The suppressor showcases a non-slotted piston design, which establishes a gas seal to significantly reduce gas blowback.
Versatility is the name of the game with the Griffin Bushwhacker 46, making it a great option for the 450 Bushmaster. Engineered to be more compact, more durable, with higher performance, and more mounting options than any other, the Bushwhacker 46 is the class leader in the most versatile category.
This more updated version provides better sound reduction, stronger construction, reduced backpressure, and higher heat resistance. This all adds up to a suppressor that will take whatever you throw at it, no matter the caliber or what firearm and mounting option of choice that you use as your host.
Advantages:
User-serviceable for easy maintenance
Compatible with a wide variety of mounting options, pistons, and end caps for optimum versatility with multiple calibers
The BANISH 46-V2 suppressor is designed for use with a wide assortment of rifle calibers including .338 Lapua up to the mighty .45-70 Government and the popular 450 Bushmaster, as well as .44 Magnum. It is also popular for pistol calibers, including 10mm and .45ACP. It's versatility and adaptability makes it a very quiet choice for the 450.
Made of titanium, the extremely durable Banish 46-V2 is lightweight at just 15.3 oz. It is only 8 inches long and 1.59 inches in diameter, making it a very compact suppressor for big-caliber rifles. Don’t let the smaller size fool you, as the BANISH 46-V2 offers a 30-decibel reduction in sound output.
Like other BANISH suppressors, the 46-V2 is a user-serviceable suppressor that is easily disassembled for cleaning. Being made of titanium, you can easily clean the baffles in a tumbler, ultrasonic cleaner, or by hand with a brush and solvent, making it simple to keep operating at peak performance. Reassembly is just as easy, thanks to the keyed and indexed baffles. This guarantees that each one will line up perfectly with the others.
Shooting suppressed isn't just beneficial for you as the shooter. It's also beneficial to those around you. Whether that's the person in the next bay at the indoor range, people in nearby houses at an outdoor range, or residents on neighboring properties when you're hunting, the sound mitigation provided by a suppressor makes you a more polite shooter, as it were. Being aware of the implications of the sound of gunfire for those around you can help maintain good relationships with the non-shooters in your area.
Benefits of Using a Suppressor with the 450 Bushmaster
There's no denying that the 450 Bushmaster is a stout cartridge. As a result, there are some things that are just a given when shooting it: noise and recoil. Both can be significant if you're only accustomed to shooting regular 5.56 or .223 ammo. Thankfully, using a quality suppressor can help with both of those things.
If you're shooting heavy, subsonic ammo through a silencer, you'll notice a much quieter shooting experience with the 450 Bushmaster because it is traveling slower than the speed of sound, so there's no supersonic crack, and there's better gas dissipation. Even when shooting faster supersonic ammo, you'll notice (and appreciate) the decibel reduction.
Equally important to reduced decibels is the reduced felt recoil you'll experience when using a silencer. Shooting the 450 Bushmaster through a suppressor will help mitigate some of the felt recoil you'll experience. Given the physical size of the cartridge, you'll be glad to have that reduction if you plan on shooting a large quantity of 450 Bushmaster in one session.
This Savage rifle in .450 Bushmaster, with Leupold scope and a Dead Air Primal can on the barrel makes for a pretty potent combo for deer hunting in areas where straight-walled cartridges are required. Photos by Ryan Grant.
Legal Implications of Owning a Suppressor
It is absolutely paramount that you understand and follow all of the federal and state laws that surround suppressor ownership. Failure to do so can result in steep fines and even time behind bars.
In addition to understanding and abiding by federal and state laws, it's also important to check with your local government and make sure that owning a suppressor is legal in the specific area where you live. While rare, there are some cities and counties that place restrictions on suppressor ownership.
Suppressors are NFA Items
Suppressors fall under the regulations set out in the National Firearms Act (NFA) of 1934. This makes them NFA items, which is probably a term you've heard before even if you're brand new to the world of suppressors.
Being classified as an NFA item groups suppressors together in the same category as short-barrel rifles (SBR), short-barrel shotguns (SBS), and even machine guns. Yes, machine guns. If that sounds silly, well, that's it's because it is. Like it or not, it's the law and we must abide by it. Because suppressors NFA items, there's a bit more involvement in the buying process.
The Suppressor Buying Process
At Silencer Central, we revolutionized the suppressor world and made the buying process easier than ever before. Our staff will guide you through the entire process, handle all of the paperwork, and send your suppressor to your front doos. Here's a brief rundown of how it works:
Invest in a Quality 450 Bushmaster Suppressor Today!
The staff at Silencer Central has been shooting and selling suppressors for more than 15 years. Suffice it to say that we’ve got a pretty good idea which silencers pair best with certain guns and calibers, like the 450 Bushmaster cartridge. If you’re having trouble deciding, don’t hesitate to reach out to us. We’ll happily talk you through the options and then, when you’re ready, get you on your way to silencer ownership and suppressed shooting!
Yes, it is! It is legal to hunt with a suppressor on your 450 Bushmaster or any other legal firearm in 41 of the 42 states where suppressor ownership is legal.
Depending upon ammunition choices, you can expect to see up to a 30 decibel decrease in sound output from your 450 Bushmaster, especially if you are using a bolt-action or single-shot rifle and sub-sonic ammunition. Results vary, but it can really tame the big cartridge and reduce recoil even more!
It is a big cartridge and it comes with a big thump to your ears. Adding a suppressor makes a lot of sense for these bigger cartridges and can save your hearing when you're in the field or at the range.
While many suppressors can be used on several different caliber firearms, we have some specific models that can make your shooting more enjoyable. Pick the caliber that you have in mind. If you don’t see your caliber, pick one close to it to see our recommendations.
