Rock River Arms (RRA) is back in the 1911 business, and the company’s new 1911 Poly is the latest polymer-frame 1911 pistol to be introduced by various companies during the past 20 years or so. It has a few new touches, but it’s a real chip off the RRA block in terms of performance.
The idea of a polymer-frame 1911 first appeared on the American scene in 1991 when a company called STI International introduced its 2011 pistol. Its insert—comprising slide rails and dustcover—is made of steel, while the grip section is molded of fiberglass-reinforced plastic, or polymer as the firearms industry prefers to call it.
Another poly-bottom pistol called the M5 is manufactured by the Israeli firm of Bul Transmark Ltd. and was first introduced to American shooters by a Texas-based importer around 1992. The Kimber Polymer built on the M5 frame came along in 1997, and it was later renamed the Kimber 10. Several variations were offered before it was discontinued around 2006. The Israeli-built M5 appeared once more in 2008 when KBI began importing it under the Charles Daly banner, but it went away when the company did.