RUGER 223 AI GUNSITE PRECISION POLYMER MAGAZINE 10 SHOT - SKU: RP90562 10-round chassis magazine fits the Ruger Precision Rifle and Gunsite Scout Rifle chambered in 5.56 NATO/223 Rem. 60% glass-filled polymer design for strength and durability. Stainless steel spring provides reliable feeding and corrosion resistance. Designed to function with many AI-style bottom metal assemblies in .223 Rem-sized cartridges with a COAL max of 2.50". Dust cover protects rounds from damage and debris during transportation and storage.