Resonator .300 BLK Integrally Suppressed Upper Receiver Group

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How to Purchase:
Contact your local dealer today!

YHM is pleased to offer the Resonator® .300 BLK Integrally Suppressed Upper Receiver Group.

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 to be purchased.
Included is 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 Blackout
  • Weight: 3.3 lbs.
  • Length: 23.5”
  • Diameter: 1.375”
  • Construction: 17-4 Ph SS/Inconel 718 Blast Baffle
  • Decibel Rating: 127 dB (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
  • Low Profile Suppressor Gas Block
  • Black Plated Gas Tube (YHM-BL-04P)


Resonator Integral

Yankee Hill Machine Co., Inc. does not offer for sale any controlled product (serialized parts) directly to the end user. This includes Complete YHM-15s, Sound Suppressors, and Lower Receivers. Follow these steps when purchasing to ensure that you receive your order as quickly as possible.

1. Visit (or call) your local firearms dealer and tell them exactly what model number you are looking for (If ordering a sound suppressor keep in mind the dealer needs to be a Class 3 dealer). If your dealer of choice does not currently a offer YHM products don't worry. They can easily become a YHM dealer.

2. IMPORTANT NOTE: EVEN IF A PRODUCT IS OUT OF STOCK ONLINE, DEALERS CAN BACK ORDER THE ITEM AT ANY TIME. Placing your order through a dealer gets you on the back order list and ensures that you will receive your product in the fastest manner possible. This can be applied to any item you are looking for on the website.

Once the order is placed, as soon as the product is ready to go out the door the dealer will be notified and the product will be on its way.

3. Once the dealer receives your order they should contact you to come and pick it up.

Manufacturers Disclaimer:
You, the purchaser are responsible to know your local, regional, state and federal firearms regulations regarding assault rifles and NFA weapons (Such as sound suppressors and short barreled rifles) when purchasing our products. Some of our products in this catalog require a Federal Firearms License and/or S.O.T for purchase.

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