As with the Model 20, Wilson Combat builds the new Model 20S around an CNC-machined and EDM-cut cylindrical action of 4140 steel, with a bolt that’s machined from 4340 barstock. The push-feed ...

Wilson Combat's NULA Model 20S is based on the company's short-action Model 20, but this model is a micro-action sized for popular AR-15 cartridges.

With the Model 20S, Wilson Combat does essentially the same thing. Although AR-15-compatible cartridges have a maximum overall length of 2.60 inches to work in AR-15 magazines, the Model 20S has a ...