M1 Garand HRA Gas Cylinder with Swivel USGI - NICE

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USGI - M1 Garand HRA Wide Base Gas cylinder with Swivel Bore measures 0.528" (see pic #5 with 0.528 gauge inserted.) This is a "GO" gauge and must insert without binding. Bore will not accept a 0.530 guage. (See pic #6 where 0.530 gauge stops at end of threads) This is a "NO GO" gauge and should not enter the area of the tube following the threads. Slightly offset stake on swivel screw. Great condition, nice finish. Sight base measures 0.590. Came off a functioning rifle. Thanks for looking. Glad to combine shipping costs on like items. No foreign bids accepted