NFA item — $0 federal tax stamp. Order, we file the ATF Form 4 on eForms, you pick up at your SOT dealer after approval. Flat $14.99 firearm shipping.
Licensed FFL · Class 2 SOTWe file the Form 4$0 tax stamp
How the Form 4 process works
Transfers on an ATF Form 4 with a $0 federal tax stamp (as of Jan 1, 2026). We file the paperwork on eForms and keep you posted on status; you pick up at your SOT dealer with photo ID after ATF approval. How the Form 4 works →NFA & suppressor guide →
The Resonator K was designed to provide the shooting enthusiast with a quiet lightweight and cost effective suppressor for the high-caliber shooter looking to shed some weight and reduce their footprint. The blast chamber is threaded to the popular 1-3/8 -24 HUB thread which allows it to utilize many available mounting options. The end cap design greatly reduces flash signature. The Resonator K can be used on rifle calibers ranging from .17 HMR through 300 RUM. The Resonator K uses a tubeless design which consists of heat-treated 17-4 stainless steel and a heat treated Cobalt 6 blast baffle which allows the suppressor to be full auto-rated and designed for rigorous use. Comes with the Phantom Q.D. Adapter (1) YHM-2007 (1) YHM-2146 and Muzzle Brake YHM-4302-MB-24a. Caliber: .30 Weight: 9.6oz./12.4 w/Q.D. adapter Length: 4.8 /5.65 w/Q.D. adapter - 5/8-24 threads Diameter: 1.562 Construction: 17-4 PH SS/Cobalt 6 Blast Baffle Mount: Phantom Q.D. HUB adapter Decibel Rating: 137 dB Minimum Barrel Lengths: 7.62x51 / .308 Winchester: 10.5 5.56 NATO 6.8SPC 7.62x39: 10 .300 Win Mag / 300 RUM: 20 300 Blackout: 7.5 Full Auto Rated
WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
