Several M1 Carbines have been issued with a simple L-sort rear peep sight, which could alternate in between two diverse peephole heights for 150- and 300-property ranges. The sight was preset inside a dovetail atop the receiver and never adjustable. Machining components into the tightest common tolerance facilitates simple assembly https://manueloifqc.rimmablog.com/32394922/buy-great-lakes-firearms-online-can-be-fun-for-anyone