Caliber: 5.56 mm (.223 caliber) - Length: 6.2 inches - Weight: 17.0 ounces - Diameter: 1.5 inches - Advanced features based off the Winner of US Special Operations Command (USSOCOM) extensive and rigorous suppressor trials - USSOCOM official safety verification in support of fielding - Advanced internal venting to reduce back pressure cyclic rate and gas blowback - Integrated blast shield increases durability - Patent-pending front-plate design and proprietary gas flow improvements virtually eliminate first-round flash - Effective attenuation of noise and dust signatures - Patented Fast-Attach� design attaches and removes in seconds - Minimal and consistent point-of-impact shift - Lightweight and compact for minimal impact on weapon handling characteristics - Constructed of advanced high-temperature alloys and stainless steel - Long service life - Made in the USA