GSL’s new SWAT-5 suppressor for 5.56mm NATO is rated for full-auto and comes with a built-in suppressor retention system to keep the can from backing off during operation. – SWAT-5: – Caliber: 5.56mm NATO – Sound Reduction: 30 dB – Length: 6.3 – Diameter: 1.50 – Weight: 13 oz. – Materials: Titanium/Inconel – Finish: High Temperature Cerakote – Mount: 1/2-28 Thread – For Barrels: 10.25 minimum length 5.56×45/.223