Lightweight and modular the RAD 45 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 45 Long / short configuration specs: - Length: 8.6 / 6.4 - Weight: 10.3 oz. / 7.6 oz.