HO Knuckle Spring AAR Lower Shelf Coupler Set of 25 Pairs (MCH250)

HO Knuckle Spring AAR Lower Shelf Coupler is a set of 25 pairs of HO-scale, spring-loaded knuckle couplers designed for freight cars. They follow the AAR standard E safety profile and include a magnetic uncoupling pin for quick, reliable operation, making them ideal for upgrading models to modern, dependable couplers.

These scale-size couplers are about three-quarters the size of traditional couplers and are designed for HO-scale models. The lower-shelf design mirrors the mounting seen on freight cars built after 1980, delivering a realistic look and improved alignment on updated rolling stock.