Easy, Precise Alignment Of Flash Suppressors Or Muzzle Brakes
Mil-spec washers split apart to allow exact alignment of A2-style
flash suppressors or other brakes that require indexing.
AR-15, Issue:09, Page:018
Big Book Catalog, Issue:66, Page:018
Law Enforcement / Police Store, Issue:08, Page:005
SPECS: Steel. Sold in paks of 5 each. Fits ½" O.D.