Gemtech (Gemini Technologies) out of Eagle, Idaho has released the new G-Core line of suppressors at SHOT Show this year.  Gemtech started as a consortium of suppressor designers back in 1993, and has been creating and expanding suppressor technology ever since.  In fact, Gemtech has documented several of their 5.56mm suppressors from another line with over 100,000 rounds fired through them without a loss of dB reduction.

Gemtech is a leader in suppressor innovation.

Talking to Casey Foster at the Gemtech booth I learned that the success of the G-Core line is a direct result of Gemtech recently going through a major overhaul of their manufacturing process.  That overhaul included adding a significant amount of automated technology, including more advanced CNC machines, to increase productivity and save costs.  At the same time one of the Gemtech engineers began to develop a new concept for suppressors that resulted in the development of the patented G-Core suppressor line.

The business end of the GMT-300 with Gemtech machined logo.

A view of the patented GMT-300 baffle system.

G-Core suppressors were designed not only for sound suppression, but with accuracy in mind as well.  Designed using the latest Computational Fluid Dynamics (CFD) software, the G-Core suppressors went through Finite Element Analysis (FEA) to make sure the suppressors would end up both durable and light weight.  Finally, each model went through rigorous live-fire testing to ensure all requirements were met.

The face of the GMT-300.

The attachment threads of the GMT-300.

The end result was that the G-Core line of suppressors are the strongest Gemtech suppressors ever made, and the strongest on the market, according to Gemtech.  Foster claimed that in recent testing using SOCOM and M4 tables, the G-Core suppressors far exceeded any competitor’s suppressor despite being torture tested well beyond the level at which the competitor’s suppressors had failed.  The G-Core suppressors withstood the testing to a “level 13” without reaching a failure point.

Another look at the patented GMT-300 baffle.

The most impressive of the G-Core line is the GMT-300 Blackout suppressor.  Designed for the .300 Blackout cartridge, the GMT-300 accomplishes what Foster says no other suppressor has succeeded in doing – suppressing “supersonic” ammunition to hearing safe sound levels.

For the longest time one of the drawbacks to the effective use of suppressors was the limitation on using subsonic ammunition.  Though a suppressor could be used on supersonic ammunition, the resulting noise reduction would not quite reach the hearing safe levels.  Now it appears Gemtech has found a way to bridge the gap and allow shooters to suppress supersonic ammunition – well, at least in .300 BLK.

The side view of the GMT-300 suppressor. Note that all the components are made of titanium.

GMT-300 Blackout Suppressor (.300 BLK only – subsonic AND supersonic)

• Length – 6.7 inches
• Diameter – 1.5 inches
• Weight – 14 ounces
• Material – Titanium
• Tube Finish – Desert tan Cerakote with reduced visual IR signature
• Core Finish – Titanium
• Mount – 5/8 – 24 Thread
• Sound Reduction – 36-39 dB
• Sound tested on a NEMO 16” with PNW 147gr supersonic and 187gr Gemtech subsonic ammuntion
• Special dB Test Note – Hearing safe on a NEMO 7.5” barrel with PNW 147gr supersonic and 187gr Gemtech subsonic ammunition.
• MSRP – $995

An angled look at the business end of the GMT-300 with machined Gemtech logo.

The tested GMT-300 suppressor fired 1100 rounds without cleaning, and continued to perform as designed.  The Gemtech GMT-300 Blackout appears to be an incredible advancement in suppressor technology.  It should be very interesting to see what kind of results they can achieve with their .223 Rem. and .308 Win. suppressors, which they hope to have ready for market later this year.  Foster explained that current testing of the high pressure .223 and .308 rounds has caused pitting near the suppressor entrance where the pressure is highest, so more work is in order before release.  If Gemtech can accomplish supersonic hearing safe noise reduction in those extremely popular calibers, it could revolutionize the market.