Gemtech GMT-300 .30 Cal Suppressor - Black

Manufactured by Gemtech
SKU: 12119
MPN: 12119
Manufactured by Gemtech
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Standard orders will ship out same day if ordered by 3:30pm CST. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.

Items that are regulated by the ATF and NFA have restrictions and requirements: •Your Entire Order will ship only to a Federal Firearm License holder •NFA restricted items require class 3 licensing and documentation •A copy of your order/invoice as well as the current FFL License for your local dealer must be emailed to ffl@primaryarms.



The Gemtech GMT-300BLK Suppressor is a completely user serviceable suppressor for rifles chambered in 300 BLK. Utilizing Gemtech's patented G-Core technology, the GMT-300 can be disassembled for easy cleaning and maintenance. A titanium tube keeps the weight to just 14 ounces, so this GMT-300 suppressor won't weigh the front end of your rifle down. It attaches to your rifle using 5/8-24 threads, and with an OAL of just 6.7 inches is perfect to mount on a short barreled rifle or AR15 style pistol. This Gemtech suppressor reduces the noise signature of 300 BLK to 124db out of a 16 inch M&P15, and to 129db out of a 10.5 inch Daniel Defense carbine. While hearing protection is always recommended, the Gemtech brings the noise level down considerably.

  • Sound tested to 124db
  • Full auto rated
  • Titanium tube with Cerakote finish
  • 1.5 inch diameter

300 BLK is a unique round that has commercial loadings available that operate at supersonic speeds, and loads available that operate at subsonic speeds. This velocity change affects a suppressor's ability to do its job, which is why the Gemtech GMT-300BLK is designed to work equally well with either supersonic or subsonic velocity rounds. The GMT-300 was optimized for short barreled rifles, and works best on short barreled rifles with a barrel length of 7.5 inches to 10.5 inches. Mounting this suppressor to a 10.5 inch short barreled rifle produces a gun with an OAL similar to a standard M4 Carbine, but with lighter weight and all the advantages of suppression.

Gemtech, or Gemini Technologies, began as a suppressor company in 1976 by a group of well-known suppressor designers. Their suppressors have been used by all branches of the United States Military and Special Forces groups all around the world. They are an ISO 9001:2008 certified company that is dedicated to bringing high quality products to the market.
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Baffle Materialtitanium
Baffle Stylestacked
Body MaterialTitanium
Caliber Gauge.30 Cal
User ServiceableUser Serviceable
Weight14 oz.

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