.280 Rem Ackley Imp. caliber; Guaranteed Sub-MOA accuracy; TriggerTech's trigger provides true zero-creep break, extremely short over-travel, and is externally adjustable; Accubrake ST - By adding an Accubrake ST you will signicantly reduce felt recoil up to 53%; 54 Degree Bolt - Allows for faster chambering on follow-up shots and greater bolt-to-scope clearance; Carbon Fiber stock - Sourced from Peak 44, this stock has the distinction of being the lightest production aerospace-grade carbon fiber stock on the market; 3DHEX Recoil reducer; Cerakote Finish - The Cerakote unique formula enhances physical properties including wear, corrosion, and chemical resistance; Deep fluted bolt; Removable bolt knob; Removable Bolt Knob - Allowing for customization and utility, the bolt handle of the Mark V is now threaded to accept a variety of bolt knobs