The Ruger AI-Style Precision Rifle Magazine is a standard factory replacement magazine for the Ruger Precision Rifle or Ruger Gunsite Scout Rifle. This short action magazine is designed to hold 10 rounds of .308 Winchester, 6.5 Creedmoor, or .243 Winchester. It's constructed of black polymer with a stainless steel spring and it's designed to fit rifles with AI-Style bottom metal. This magazine is made to Ruger specifications and tolerances, using the same manufacturing and materials as the original equipment magazines, ensuring perfect fit and operation.Specifications: Ruger AI-Style Precision Rifle Magazine 90563 Short Action Calibers 10 Rounds Stainless Steel Spring Black Polymer BodyFits: Ruger Precision Rifle or Gunsite Scout Rifle Chambered in .308 Winchester, 6.5 Creedmoor, or .243 Winchester