Vintage Thermold Magazine Spring (10 Coils, 8 3/4" Length Of Spring), Width 1 5/8", Diameter 5/8". For .223/5.56x45mm Cartridge. Material High Grade Quality Stainless Steel. Replacement Spring, Will Work In Most AR Design Magazine, Plus Some Pistol Magazines, Date Manufactured Early 1990's, Spring In Excellent Condition And Very Reliable. OLD-BUT-NEW !!!  Price $8.95 For 3 Springs !!! (45 Sets Available). Made In The Great U.S.A. !!! Please Look At All Pictures, Buyer Pays Shipping Cost, Ship Only In THE GREAT U.S.A. !!! Can Not Ship Outside Of U.S.A. Because Of U.S.A. Regulations. Thanks For Looking At This Listing !!!