US-DEALS .308 Broken Shell Cartridge Extractor Removal Tool for 308 caliber ammo Winchester 7.62x51mm NATO Calibers - Brand New Tool for your AR .308 rifle .308/7.62x51 Caliber Broken Shell Extractor Made of Steel. Every so often a Broken Head from a Cartridge Rips Off and Leaves the Empty Case Stuck Inside the Chamber. Easy To Use Item Extracts the Broken Shell Without Damaging Your Rifle. Perfect for Any Rifle Chambered for the .308 Caliber ( NATO 7.62x51mm ) Cartridge. It's A Good Idea To Keep One Of These In Your Range Bag At All Times Just In Case.