The Razor556 is a lightweight, versatile, and extremely durable dedicated 5.56 NATO suppressor. It measures in at a mere 6.4" and weighs just 13.4 ounces. The Razor556 attaches to the host weapon via Rugged Suppressor's Dual Taper Locking System. The first taper creates a gas seal and concentric lock up for repeatable return to zero and keeps your threads carbon free. Additionally, the rear taper creates a friction lock to keep your suppressor where it should be on your rifle. The Dual Taper Locking System also features a "No Go/Go" gauge for complete assurance that the suppressor is properly attached. Additionally, the Razor556 is rated for full-auto fire, and offers reduced gas blowback. Features of the Razor556:Dedicated 5.56 NATO suppressor Dual Taper Locking System: First taper creates a gas seal and concentric lock up for repeatable return to zero and keeps your threads carbon free. Additionally, the rear taper creates a friction lock to keep your suppressor where it should be on your rifle Rated for full auto fire Reduces gas blowback Rugged Suppressors Razor556 Suppressor RZR556