Lightweight and modular the RAD 9 is built with our next generation Flow-Baffle� technology substantially reducing gas blowback while maintaining superior pistol performance. You�ll feel the difference the first time you shoot. - OSS�s innovative Flow-Baffle design is based on our patented and proven Flow-Through technology. Flow-Baffles direct expanding gas away from the bore-line and radial grooves route them forward through the suppressor and away from the shooter. - RAD 9 Long / short configuration specs: - Length: 7.7 / 5.15 - Weight: 9.1 oz. / 5.9 oz.