Very good condition M1 Garand Narrow Base Gas Cylinder made at the Springfield Armory. This is correct for early WWII Springfield Garands made between appox June 1940 and July 1943. The bores on these gauge Very Good. Retains about 75% or more of it original finish and come with their original stacking swivel. I have very few Original Finish Narrow Base Gas Cylinders left so get them while you can.