Gemtech

The GEMTECH Inegra upper series is the most advanced Integrally Suppressed Upper Receiver available. It utilizes GEMTECH's proven G-CORE Technology that is removable, cleanable, and replaceable while still bringing the best sound reduction of any similar sized package. The GEMTECH/NEMO Arms patented gas block eliminates blowback, making this upper receiver more comfortable to shoot. The Innovation, Accuracy and Quality is what makes GEMTECH, the professional's choice for decades.