RUGER 308 AI GUNSITE PRECISION POLYMER MAGAZINE 5 SHOT - SKU: RP90561 5-round chassis magazine fits the Ruger Precision Rifle and the Gunsite Scout Rifle chambered in 308 Win, 6.5 Creedmoor, 243 Win and other 308 Win-sized cartridges. 60% glass-filled polymer design provides strength and durability. Stainless steel spring for reliable feeding and corrosion resistance. Designed to function with many AI-style bottom metal assemblies in 308 Win-sized cartridges. Dust cover protects rounds from damage and debris during transportation and storage.