Specially made, slab-sided punch clears left side of the magazine well allowing bolt catch pivot pin to be removed by driving it to the rear.
AR-15, Issue:10, Page:078
AR-15, Issue:10, Page:079
Brownells Christmas , Issue:2X, Page:019
Big Book Catalog, Issue:67, Page:078
SPECS: Steel. 4" (10.2cm) long. 3⁄32" (2.4mm) diameter tip.