Colt’s Series 70 Trigger Put to the Test — Series 70 vs. Series 80

Colt’s Custom Shop Mk. IV Series 70 in stainless

On Monday I posted an initial look at the Colt Mk. IV Series 70 — a current version from Colt’s Custom Shop. In that article I explained how the Series 70 came about, how the Series 70 firing system differs from the Series 80 system used in Colt M1911 pistols since 1983, and why Colt reintroduced the Series 70 in limited runs beginning in 2001.

Colt Mk. IV Series 70 (stainless); Colt M1991A1 (blue)

In the M1911 world, there is a persistent, oft...