Boyds Hardwood Gunstocks Pro Varmint Ruger American Centerfire Long Action Factory Barrel Channel Black Texture Paint. The manufacturer says that Boyds Hardwood Gunstocks Pro Varmint Ruger American Centerfire Long Action Factory Barrel Channel Stock is compatible with Ruger American Rifle Ruger American Rifle RanchBoyds Hardwood Gunstocks 3ZA984C1G203: Pro Varmint Ruger American Centerfire Long Action Factory Barrel Channel Black Texture Paint