Thread Pitch 5/8-24 – Modularity MODULAR- Replaceable Core and End Cap; Serialized Thread Mount – Mounting Direct Thread Aluminum Mount w/Titanium Thread Insert – Materials 100% Machined 7075-T6 Alum. and 6Al-4V Ti. – Features Built in Self Cleaning Carbon Cutters – Sound Reduction 26 Barrel-132.5 db – Finish Hard Coat Anodizing – Weight 18.5 oz – Length 10.9 inches – Diameter 1.75 inch – Calibers Rated up to 338 Lapua Magnum. Including 338 Win Mag and others – Rate of Fire Controlled- 1 round every one second for up to 20 rounds. Then cool to ambient temperature