YHM Resonator Integral .300BLK. Suppressed Upper Receiver Group 9''
SKU YEYHM7135 · MFR# YHM-7135
$1,038Low stock — 4 left
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 Integral comes with a Resonator suppressor which is pinned and welded to a 9.1 .300 BLK barrel. With a combined barrel/suppressor length of just over 16 this system only requires a single tax stamp purchase. Includes a lightweight M-LOK Handguard YHM Mil-Spec A3 upper receiver and a specially designed gas block which reduces blowback and cycle rates. Does not include Bolt Carrier Assembly or Charging Handle. Caliber:.300 BLK Weight: 3.3lbs Length: 23.5 Diameter: 1.5625 Suppressor Construction: 17-4 Ph SS/Cobalt-6 Blast Baffle Decibel Rating: 127 for .300 BLK subsonic Full Auto Rated The Resonator .300 Blackout Integral Suppressed Upper Receiver System Includes: Resonator Sound Suppressor Assembly MR7 M-Lok 9 Handguard Flat Top A3 Upper Receiver Assembly (YHM-100) Low Profile Suppressor Gas Block (YHM-9389-SS) Black Plated Gas Tube (YHM-BL-04P)
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.
