Like collecting en bloc clips or carbine magazines, there will be someone interested in the variations.
When you bought your early AR-15 in '64, the magazines had a white dot sticker and had the small "CAL.223" on the floorplate
Cooper magazines had a lot of rejections and a cancelled contract - there are a lot of variations for the collector
early "sterile" AR-180/AR-15 30rd magazine from '69 made it to Viet Nam before the Colt 30 rdP1010018_0017.jpgP1010006_0006.jpgP1010031_0026_1.jpgP1010009_0004_004.jpg