Suppressor Propagation
I’ve said it many times; 2026 has become the year of the suppressor. An unprecedented flow of new suppressors have poured into the market, so many that it might be tough to choose among them. If you are looking to get into a suppressor, I’ve made some suggestions here. But today we are talking about a specific suppressor, set apart by new technology and design. This new unit is the Wolfpack Armory Romulus 5.56 Suppressor, a printed inconel suppressor.
The Romulus uses a radial flow design to reduce the flow of expanding gases, and venting them at a controlled rate. This design focuses on reducing the signature of a rifle both in sound and flash. As an aspiring silencer raconteur, I jumped at the opportunity to get deep in the baffles of this suppressor. And if you enjoy such a voyage, I invite you to follow along.
Divine Lineage
In perhaps a nod to their own design, the Romulus suppressor is named after the founder of ancient Rome, son of Mars, the god of war. In our modern world, the Romulus suppressor offers what some might consider divine design. The radial flow design is made possible only through modern metal printing (DMLS) technology. This design allows control of gas flow through the suppressor, and optimizing such to improve its report reduction.
Manufacturing the Romulus from inconel makes it incredibly robust. Inconel is often used in suppressors due to its tough resistance to both heat and erosion. This allows the Romulus to take incredible abuse, and surely aids with its full-auto rating. Even using short barreled rifles wont break the Romulus’ lifetime warranty. The folks at Wolfpack Armory stand firmly behind this and other products they make.
Romulus Specifications
| Caliber | 5.56 Nato |
| Weight | 14.2 Ounces (without mounting hub) |
| Length | 6- inches |
| Diameter | 1.6-inches |
| Material | 718 Inconel |
| Minimum Barrel length | None |
| Warranty | Lifetime |
| Finish | Cerakote (C Series) |
| Hub Compatible | Yes- compatible with 1.375″x24 mounting hubs |
With a build sheet like this, you can imagine that the Romulus was built for what has become known as a heavy use or fighting rifle. A 5.56 carbine as used by many in both civilian and military for both defense and duty purposes. The Romulus offers a compact size that is ready to be abused. And by incorporating the industry-wide hub mounting system, there are dozens of ways to affix the can to your host. The Romulus comes with its own Night Howler Plan B mount threaded 1/2-28 for mounting. You can also order the Romulus in either black or FDE C series Cerakote.
Lets Get it Hot!!
To test the Romulus, I gathered a small collection of rifles. A traditional sized AR I put together, with a 16-inch barrel, and another short barrel rifle built from a Desert Tech Quattro-15 using a 6.5-inch CMMG Dissent upper.
Additionally I would use the Romulus on one of my favorite rifles, my Desert Tech WLVRN. With both a 20-inch 5.56 barrel and a 22-inch 6 ARC barrel that I made for it. DISCLAIMER: I tested the 6mm ARC at my own risk after carefully measuring clearances. WolfPack Armory made no guarantee or recommendation that it would work safely.
And for fun I would also use the full-auto version called the Sabertooth with an 11.5-inch 5.56 barrel. With this variety of rifles, I could get a good feel for how the Romulus would work with most 5.56 carbines.
Sound Suppression
One of the very first things you notice when shooting with the Romulus is the difference in sound and tone. Most traditional suppressors have a higher pitch, a sound you can reproduce by pursing your lips and nearly whistle while reducing pressure. This is a sound we are all used to hearing when shooting suppressed, but the Romulus is built different. That texture you see in the front of the muzzle face, is not just for looks. It is a porous end cap. The Romulus internals route gas pressure through various channels, bringing them together at the muzzle. I speculate that the combination of gas flows interfere with each other reducing a singular flow.
The resulting sound is different than the subdued whistle sound you can make with your mouth. It sounds much more like a blow snake hissing from under a hay stack, a lower pitch that sounds more diffused. It is a very pleasant sound both on the 5.56 rifles I used for a host, as well as on my 6mm ARC.
Recoil Reduction
Obviously for those that shoot, the 5.56 cartridge isn’t exactly a heavy recoiling cartridge. And as with almost every other suppressor I’ve used, the Romulus reduces felt recoil of the diminutive cartridge. Even shooting heavier loads like 77 and 75 grain ammunition, the recoil was minimal, allowing excellent target picture and follow up shots.
During testing with my 6mm ARC, I shot both 105 and 109 grain loads. And again, the recoil impulse on the rifle was very mild. Just as the gas blending muzzle diffuses pressure reducing noise, it also seems to diffuse the spike in the curve of gas released at the muzzle. Making a softer push into your shoulder.
Gas Blowback
But does it gas me out? I can hear you guys out there asking the question. One of the most commonly cited benefits of controlled flow suppressors is a reduction in back pressure. When the very first “flow-thru” suppressors came out, I was suspicious of their claims of no back pressure. And in my experience that suspicion has been warranted, because some of the different ones I have tried will make your eyes water as bad as a baffle-strike.
The Romulus, as you can see in some of my pictures does cause some breech-farts. But not enough to give you pink eye. As you might imagine, the bullpups made it a little more noticeable since the port is closer to your face. But the overall impression wasn’t bad at all in my opinion. Having shot all these rifles with traditional baffle cans and a few flow-thru style cans, I can tell you the Romulus is better. At no point during my shooting (besides during full-auto mag dumps) did I even notice the gas enough to care.
Two of the host rifles featured an adjustable gas system, and both of them worked on their normal unsuppressed setting without excessive bolt carrier speed. Additionally, short barreled rifles put off quite a bit of fire, even when suppressed. The Romulus did an excellent job at getting rid of flash, even on the 11 and 6-inch barrels.
Modularity
It wasn’t that long ago that suppressors lacked any modularity at all. By adding the hub compatible blast chamber to the Romulus, it allows you to use any kind of mounting system you choose. This is nice for those who have a large collection of any one system, be it from SiCo, Huxwrx, Q or otherwise. I also like that the Romulus is narrow enough that it can be easily tucked under a handguard if thats your style.
Value
Perusing through dedicated 5.56 cans you can see a broad selection even among the printed cans. Comparing the Romulus to others like the SiCo Velos 556K, the Dead Air Lazarus 6, or the Huxwrx Flow 556 there is hardly enough difference in price to matter.
Wolfpack Armory’s lifetime warranty adds a great deal of value to this can. Especially considering some of the internet murmurings about 3D-printed suppressors having no warranty other than a discount on a replacement.
Pros and Cons
Pros
- Excellent suppression and tone
- Inconel construction for increased durability
- Full-Auto rated
- Hub compatible
- Controlled flow design
- Lifetime Warranty
- No barrel restrictions
- No need for gas system tuning
- Plan B mount and tools included
- Ladies love a man with class
Cons
- Might be hard to get ahold of? Maybe?
My Conclusion
I’ve shot through a fair number of reduced back pressure 5.56 suppressors, enough to know that the Romulus is certainly as good as if not better than any of them. With its no BS warranty and bulletproof construction, I don’t know why you’d need look elsewhere. Especially if you are an SBR enthusiast. But like everything in life its all about preference.
The Wolfpack Armory Romulus 5.56 is certainly worth your consideration if you are shopping for a hard use suppressor. If you see me on the firing line, hit me up and I’ll let you give it a try.
-CBM