The BANISH Speed K Ti Makes a Great AR-15 Suppressor!

The latest design is a 3D printed titanium suppressor with a vented front cap for the dedicated AR-15 shooter looking for reduced back pressure in an extremely light-weight and compact device.

August 28, 2025 By Colton Bagnoli

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BANISH Suppressors has released their new Speed K Ti suppressor. Designed with portability and excellent suppression as top priorities, it offers a compact solution for .223/5.56 carbines. Shooting suppressed when using gas guns for hunting, training, and self-defense protects the hearing and reduces muzzle blast from short-barreled rifles.

Suppressors also make for safer communication with other shooters and limits muzzle report, which in hunting situations can help you take one or two more dogs from the stand. The 3D titanium printed suppressor allows for a unique baffle design, providing excellent suppression in a four-inch-long, eight-ounce device. By increasing the diameter of the suppressor body, BANISH was able to increase internal volume while keeping a shorter overall length. Featuring Controlled-Flow Technology to reduce back pressure in gas operated carbines, the suppressor is comfortable to shoot without worrying about getting that dreaded blast of gas into your face with press of the trigger.

Reduced Blowback

Front cap of the Banish Speed K Ti — The vented front cap of the Speed K Ti is the key to the reduced back pressure on a gas gun. The Controlled-Flow Technology allows BANISH to reduce back pressure to only 5.8 percent compared to unsuppressed shooting. (Photo provided by author.)

If you have spent any time shooting a suppressed AR-15, you’re familiar with the blast of gas to the face you sometimes get with each shot, thanks to the increased back pressure a suppressor creates. We can reduce this -to a point - with an adjustable gas block affixed to the barrel, but often that leads to reliability issues when carbon deposits build up.

The ultimate fix is to vent the suppressor’s front cap to help reduce the back pressure by bleeding off gases at the proper location. BANISH was able to keep the blowback of the Speed K Ti to 5.8 percent over an unsuppressed firearm. This reduction helps reduce wear on the weapon system ultimately preserving the life of the gas system, compared to shooting a nonvented suppressor.

Reduced backpressure is most noticeable in the gas being blown back in the shooter’s face, but also in felt recoil. Nonvented suppressors also have an elongated recoil impulse, as the increase in gas in the operation system is drives the gun backwards and bleeds off around the charging handle. When shooting the Speed K Ti on my 22 ARC and .223/5.56 gas guns, I noticed a softer, smoother recoil impulse and far less gas blow back compared to other .223-caliber suppressors I shot on the same rifle with the same lot of factory Hornady Black ammunition.

Suppression

Suppressors on tailgate — A traditional .223-caliber suppressor (left) compared to the BANISH Speed K Ti (right). The BANISH offers superior suppression with significantly less back-pressure in a shorter package. We call that a "win-win." (Photo provided by author.)

BANISH reports a reduction of 20 decibels in the Speed K Ti. For most .223/5.56 firearms this is hearing-safe falling, below the 135-decibel level. Measuring firearm suppression is a confusing subject, since sound reduction depends on so many factors. Most often, reduction is measured at the shooter’s ears, as that’s the most relevant information for consumers.

AR-15’s are anything but quiet even when suppressed, and so long as the gun is comfortable to shoot without hearing protection, I am happy. I was comfortable shooting the Speed K Ti on my AR-15 without hearing protection during my solo range days when no one else was shooting around me. The larger diameter of the Speed K Ti increases the suppressor’s internal volume, helping improve noise suppression, compared to other similarly short suppressors I have tested. With those I normally still wear ear pro when shooting.

Blast baffle inside the Speed K Ti — Inside the suppressor is the first blast baffle, showing the unique designs capable with 3D printing suppressors. (Photo provided by author.)

For gas guns with vented front caps or blow-through design, you sacrifice a little bit of suppression, as some gas is allowed to exit the front of the device. But this small amount leaving the can forward is better than having it exiting the charging handle in your face. During long strings of fire in training for extended periods, shooters breathe in excessive fumes. This often results in, at minimum, headaches but can also increase lead levels in the blood system depending on the type of ammunition fired and the exposure rate. So having a front-vented cap on a gas gun is a requirement for me personally. I’ve had previous issues with lead toxicity from shooting indoors and shooting suppressed gas guns a lot.

Versatility

Two barrels with Hub mounts for the Speed K Ti — The Hub attachment allows for changing the suppressor between rifles easily and allows for the use of different suppressors, while not being married to one muzzle device for one suppressor.

The Speed K Ti includes a ½x28” direct-thread HUB plate for attaching directly to the barrel’s threaded muzzle. With the HUB mounting system, users can install HUB mounts on their ½x28”, or 5/8x24” threaded muzzles to swap the suppressor easily between platforms. HUB adapters cost less compared to muzzle brake mounts, which often run between $130 and $200 per device. HUB mounts cost on average $100 per mount which adds up when outfitting multiple rifles to host and single suppressor.

Once a rifle is zeroed and gas systems are tuned for running a suppressor, I don’t often find myself taking the suppressor off for shooting, which would require a muzzle brake or flash hider. So, the HUB is the most reasonable application for me when at the range shooting various rifles. It should be mentioned that the HUB system also is less likely to build up carbon and stick the device to the suppressor compared to a muzzle device. Muzzle devices such as brakes and flash hiders made for suppressors require extra cleaning to maintain good surfaces for mounting. HUBs just thread on and off, requiring little to no maintenance.

I ran my Speed K Ti on several 22 ARC bolt guns with excellent results and enjoyed the short, compact suppressor, keeping my 18 and 20-inch barreled rifles nice and compact. The 5/8x24” HUB attachment was perfect for my PROOF Research prefit barrels, which are only offered with one threaded muzzle dimension to reduce manufacturing costs.

After Action Review

When it comes to suppressing a gas gun, maintaining reliability, and adequate suppression are the goals, and the BANISH Speed K Ti proved to be a great option in a crowded category of suppressors with many competitors. The capabilities of new technology – including 3D Printing - are nearly unlimited, and the suppressor market requires constant innovation to stay relevant. The BANISH Speed K Ti is one suppressor to make the list. Whether it is your first suppressor or 31st, it has earned a permanent place in my collection and currently resides on my main training 5.56 carbine which sees the most use and is now much more enjoyable to shoot.