Home » Shop » Energetic Armament SONUS K, 9MM Suppressor, 5.05″ Length, 1.54″ Diameter, Welded Stainless Steel Core, Black
Home » Shop » Energetic Armament SONUS K, 9MM Suppressor, 5.05″ Length, 1.54″ Diameter, Welded Stainless Steel Core, Black
Sale!
$749.00Original price was: $749.00.$699.00Current price is: $699.00.
Out of stock
🔇 No Form 4 needed — since October 9, 2026 a suppressor transfers on a standard Form 4473 and background check, with no tax stamp or wait. Texas buyers can complete it with us; out-of-state orders ship to an SOT dealer in your state. How it works.
Update, October 9, 2026: ATF no longer requires a Form 4, tax stamp, fingerprints or registration for suppressors, short-barreled rifles, short-barreled shotguns or AOWs. They now transfer on a standard Form 4473 with a background check. Anything below that mentions a Form 4, a wait or a tax stamp was written before this change. What changed
⚠ SUPPRESSOR — NO FORM 4 REQUIRED Since October 9, 2026, ATF no longer requires a Form 4, tax stamp, fingerprints, photos or registration for suppressors. It transfers like any other firearm: a Form 4473 and a NICS background check. Buyer must be 21 or older and allowed to own a suppressor under their state’s law. Outside Texas, we ship to an SOT dealer in your state. What changed · How buying one works now
Energetic Armament SONUS K 9mm Compact Suppressor Direct Thread — Black
The Energetic Armament SONUS K 9mm is the compact K configuration of the SONUS 9mm direct-thread suppressor — shorter and lighter than the standard SONUS for 9mm pistols and PCCs where minimum overall length is a priority. K = compact. Same SONUS 9mm platform, reduced form factor. Ideal for compact 9mm pistols with threaded barrels where a full-length suppressor would create unwanted bulk or balance issues.
Spec
Detail
Caliber
9mm and smaller pistol calibers
Config
K — compact, shorter than standard SONUS
Mount
Direct Thread
Finish
Black
NFA Class
Suppressor — no Form 4 required
Energetic Armament: American Suppressor Craft
Energetic Armament is an American suppressor manufacturer whose product line takes its names from Latin and classical language — VOX (voice), LUX (light), SONUS (sound), NYX (Greek goddess of night), FEROX (fierce). The naming reflects the brand’s focus on acoustic engineering. Energetic Armament suppressors are built in the United States and cover the full caliber range from .22 rimfire to .30 centerfire rifle.
FAQ
What does the K in SONUS K mean? K = compact configuration — shorter and lighter than the standard SONUS for hosts where minimum overall length is a priority.
What does MOD2 mean on the NYX? MOD2 = second generation, updated from the original NYX design.
We file your BATFE Form 4, no filing fee on items bought from us. No Form 4 needed. Current ATF approval times vary — see our NFA wait times guide.
Ordering from Western Sport
Order online and we ship it to the licensed FFL dealer you choose near you — see how buying a gun online works. Western Sport has been a licensed FFL/SOT dealer since 2007, and everything we sell carries the full manufacturer warranty. Questions before you order? Send us a message.
Buying a suppressor now: a Form 4473 and a background check. No Form 4.
Since October 9, 2026, ATF no longer requires a Form 4, tax stamp, fingerprints, photos or registration to buy a suppressor. It transfers like any other firearm: you fill out a Form 4473, pass a NICS background check, and it is yours. No months-long wait.
Texas buyers: suppressors are legal under Texas law. Western Sport has been an SOT / Class III dealer since 2007.
Outside Texas: we ship to an SOT dealer in your state, who completes the 4473 with you. Your state’s law still decides — some states ban suppressors, and some only allow ones registered with ATF.
Want it registered anyway? ATF still accepts a voluntary Form 4. Ask us.
This item is out of stock. These are on the shelf today and ship or transfer the same way. Not sure which is the right swap? Call 817-393-4000 and we will tell you straight.
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