I saw this several years ago at the SHOT Show and it looked very interesting. It looks like Defiance setup manufacturing in the US to be able to sell the silencer in the United States.
Nyon, Switzerland (July 2012) – DEFIANCE®, a manufacturer of optimized accessories for operators and professionals, announce the release of the first DEFIANCE® Suppressor designed for the use with the KRISS® Vector family of firearms and is compatible with all KRISS® SMG, SBR and SDP firearms (supports M16x1 LH threaded .45 ACP models).
The DEFIANCE® HPS 4GSK Cal. 45 ACP incorporates an internal baffle system consisting of two steel and three aluminum baffles strategically stacked to minimize sound and maximize suppressor service life.
Constructed of T6 aluminum with a Type III MIL-SPEC black hard-anodize coating and tool steel with a QPQ coating at the threaded end, the DEFIANCE® HPS highly resists scratching and corrosion. The suppressor body and internal systems are all CNC machined from high-grade aluminum and steel alloys for long term durability and long-life reliability.
Available in .45 ACP, the DEFIANCE® HPS 4GSK weighs just over a pound at 1.1 lbs. (500 grams) and is 7.7 inches in length (197.5mm) and 1.79 inches in diameter (45.5mm).
About Kriss KRISS® Arms, an innovative Swiss-based global group, delivers proprietary technologies to the firearms industry enabling more efficient solutions, corresponding to the 21st century requirements for the global law enforcement, military and civilian markets. KRISS is headquartered in Switzerland, with production and operations in Switzerland, as well as in Virginia Beach, Virginia, USA.