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Designed for rimfire rifles and pistols, .22 caliber and smaller. The BANISH RF 22 T…
$549.00
Designed for your hunt. Built for your budget. The BANISH HNT 30 SS is a welded, sta…
$499.00
Rated for calibers up to the .300 Remington Ultra Magnum (RUM), the BANISH HNT Backc…
$1,099.00
One of the hottest rounds to emerge in the past few years is .300 Blackout; this is a true dual-purpose intermediate sized cartridge that can be fired in both subsonic and supersonic loads. It was designed to be used in AR-pattern rifles with only a barrel change to convert a traditional AR-15 rifle from 5.56 NATO. If you own a rifle set up for the round, you should do yourself a favor and get a .300 Blackout suppressor to go along with it. It's crazy fun..
There is a lot of options for a .300 BLK suppressor. You can use any of the .30-caliber models and do just fine. The cool thing is, with many of the firearms chambered for .300 BLK, you can also use some of the 9mm suppressors. These work really well with subsonic rounds.
The SilencerCo Scythe-Ti is a premium, ultra-lightweight .30 caliber suppressor built entirely from titanium, offering exceptional strength without added bulk. Designed for bolt-action and semi-automatic rifles, it delivers outstanding sound suppression across a wide range of calibers from .223 REM/5.56 NATO up to .300 RUM, making it a sweet can to use on your .300 BLK and other rifles. It is light, short and handles anything you can throw at it.
The Dead Air Sandman-X is precision-built using additive manufacturing (3D printing), the Sandman-X is built from Haynes 282, allowing it to be full-auto rated and withstand extreme firing schedules. The Sandman-X is available with a KeyMo or Xeno mount, ensuring a rock-solid, repeatable lock-up for seamless transitions between firearm hosts. The advanced 3D-printed design optimizes gas flow and reduces backpressure, perfect for shooting .300 Blackout.
The BANISH 9K is tiny! It only weighs 2.7 ounces and is just 4 inches long! If you have an AR pistol chambered in .300 BLK, or an SBR in the same caliber, this is a pretty cool option if you want to save on space and weight, but need to tame the sound levels. It works best with Subsonic ammo, and is even full-auto rated for .300 BLK in subsonic. And, you can use it on your 9mm pistols and sub-guns, too.
Designed to meet the demands of the U.S. military, the Sig Sauer SLH series features an internal multi-flow path. It allows gases to exhaust at a faster rate than traditional baffles. This results in up to 50% less toxic fumes ejecting into the shooter’s face. Since many .300 BLK shooters use an AR platform, this is a terrific can for that caliber.
The BANISH HNT 30 SS is a welded, stainless-steel, .30 caliber suppressor with an industry-standard HUB mount. Rated for centerfire cartridges up to .300 RUM, including .22 Creedmoor, .308, and .30-06. It is a terrific .300 BLK suppressor that is budget friendly and high performing.
The .300 Blackout cartridge traces its roots back to the .300 Whisper, a cartridge developed in the early 1990s. The .300 Whisper utilized .221 Fireball brass that was expanded to accept a .30-caliber bullet. As a result, shooters could tailor loads to fit different applications. Lighter bullets could be pushed to supersonic velocities, delivering performance similar to the 7.62x39mm, while heavier bullets could be loaded to subsonic speeds for exceptionally quiet shooting when paired with a suppressor.
However, despite its versatility, the .300 Whisper struggled to gain widespread adoption. Because the cartridge name was trademarked by SSK Industries, major manufacturers were reluctant to produce barrels, brass, or reloading dies for the platform. Furthermore, the passage of the 1994 Federal Crime Bill and Assault Weapons Ban created additional obstacles. During that period, threaded barrels on semi-automatic rifles often subjected firearms to restrictive regulations, making suppressor-ready rifles less common.
At the same time, suppressor ownership was relatively rare. National Firearms Act (NFA) regulations were frequently misunderstood, and the process of purchasing a suppressor was viewed as complicated and burdensome. Consequently, the .300 Whisper remained a niche wildcat cartridge and appeared destined to fade into obscurity.
Fortunately, the landscape began to change after the Federal Assault Weapons Ban sunset in 2004. Around the same time, Advanced Armament Corporation (AAC) recognized the cartridge's potential and started developing an improved version of the design. Eventually, AAC was acquired by Remington Defense, and together the companies refined the cartridge to address perceived shortcomings of the 5.56 NATO while maintaining compatibility with the AR-15 platform.
To create the modern .300 Blackout, Remington and AAC made several important changes. Most notably, they adopted 5.56 NATO brass as the parent case instead of the .221 Fireball. This decision simplified manufacturing and made components far more accessible to shooters and reloaders.
In addition, the cartridge was submitted to both SAAMI and CIP for standardization. The resulting cartridge became known as the .300 AAC Blackout under CIP standards and .300 BLK under SAAMI specifications.
One of the biggest advantages of the .300 Blackout is its compatibility with existing AR-15 and M16 platforms. In fact, shooters can use standard bolts and magazines, with the barrel being the primary component that requires replacement. Furthermore, .300 Blackout and .300 Whisper ammunition remain fully interchangeable, including barrels, reloading dies, load data, and most reloading components.
Perhaps more than any other modern rifle cartridge, the .300 Blackout was designed with suppressor use in mind. Thanks to its wide selection of subsonic ammunition, it has become one of the most popular suppressor host cartridges available today.
The benefits are twofold. First, shooters using strictly subsonic ammunition can often utilize suppressors rated for handgun calibers such as 9mm or .45 ACP, provided the suppressor manufacturer approves that use. Second, for those seeking maximum ballistic performance, supersonic .300 Blackout loads perform exceptionally well through a quality .30-caliber suppressor.
Additionally, supersonic .300 Blackout ammunition remains remarkably suppressor-friendly. While it will never be as quiet as a subsonic load, many shooters are more concerned with reducing blast, recoil, and muzzle report than achieving absolute silence. In those situations, a suppressed supersonic .300 Blackout offers an excellent balance of performance and sound reduction.
While both cartridges share the same parent case and function in standard AR-15 magazines, they were designed for very different purposes. The 5.56 NATO excels at high-velocity performance, flatter trajectories, and long-range effectiveness. Conversely, the .300 Blackout prioritizes versatility, larger bullet weights, and superior performance from short-barreled rifles and suppressed platforms.
As a result, shooters looking for a cartridge optimized for suppressor use often gravitate toward the .300 Blackout. Meanwhile, those prioritizing velocity and extended-range performance frequently choose the 5.56 NATO. Ultimately, selecting between the two comes down to intended use, firearm configuration, and shooting preferences.
Terminal ballistics for both rounds as a military cartridge will be compared ad nauseum. A lighter 5.56 bullet traveling at 75% to 100% of the velocity has its advantages compared to .300 Blackout. Yet some troops would say that a heavier and slower bullet may not have the penetration ability of the 5.56. It does address over-penetration issues noted by US Army Rangers and Infantry in operations in Somalia. There, the 5.56 required multiple hits on target to dispatch an enemy soldier.
Of course we know the best place to buy .300 BLK suppressors. It's the best place to buy any suppressors. Silencer Central has the best process, the best selection, and the best customer service. Period. It's not even close, and we have the data to prove it. It's why you should buy your next (or first) suppressor from us.
About .300 Blackout Suppressors
When you use subsonic ammo, the .300 BLK is extremely quiet. It is one of the quietest rounds you can shoot suppressed.
No, you can't. The diameter of a 5.56 is too small, and using one will severely damage the suppressor, the firearm, and quite possibly, yourself. You need a suppressor that is at least .30-caliber or bigger in diameter to shoot .300 BLK.
The .300 BLK was actually designed to work with shorter barrels, as far down as 7-inch AR-pistol and SBR setups. The cartridge works with all barrel lengths, but shorter barrels down to 16-inch or shorter work best.
Since the .300 BLK uses the same basic magazine as the 5.56 AR-15, getting them mixed up is a real possibility and a hazard. One of my solutions that works well is to use 30-round mags in my 5.56 and 20-round PMAGS from Magpul that were designed specific to the .300 BLK. This way it is harder to confuse the two. Otherwise it is good to mark your .300 BLK mags to keep them separate.
