Similar to Frontier Scout, with a steel case colored or blued frame. Fitted with old style black plastic eagle grips. Peacemaker .22 and New Frontier .22 revolvers were initially offered with 4.75", 6" and 7.5" barrels (Buntline). After about one year of production 4.75" barrel was discontinued and a 4.4" barrel was offered in each model. Also has an interchangeable .22 Magnum cylinder.

Peacemaker .22 was only available with a steel receiver and color case-hardened finish. Grip frames were alloy. Same is true of New Frontier .22 revolvers except that (as noted in the book), New Frontier .22 GS series was available with color case-hardened or blue receivers. Both Peacemaker .22 and New Frontier .22 revolvers were available in single caliber (.22 LR only) and dual caliber (.22 LR and .22 Magnum) models. The factory had separate model numbers for these variations. Also, the factory offered "P" series or "62" model Frontier Scouts and Buntline Scouts. This was a significant model variation. Most of these revolvers had a "G" suffix although some built in 1974 had a "L" suffix. In 1982 through 1986 a New Frontier model with cross-bolt safety was offered. This model is often referred to as "GS" series. This revolver was offered with adjustable sights only. No Peacemakers were offered in this series.