Sears that you can drop right in feature pre- ground and
fully-prepped nose angles. No final stoning required for custom
performance. Factory Enhanced - Metal injection molded;
hardened, then machined for a close tolerance fit and long-lasting
function. Pro Match - CNC machined from S7 tool
steel, then double heat treated to provide non-captive sear angles
that stay sharp and won't round off.
SPECS: Factory Enhanced - MIM steel, blued. Pro Match - S7 tool steel, in-the-white.
Catalog page 104