HO Knuckle Spring AAR Lower Shelf Coupler Set (6 pairs) (MCH212)

This HO-scale Knuckle Spring AAR Lower Shelf Coupler Set is designed for modern freight cars, featuring AAR standard E-safety couplers and a magnetic uncoupling pin. The six-pair set is ready to upgrade HO freight cars that use the lower-shelf design commonly seen on cars built after 1980.

The couplers are scale-sized, about three-quarters the length of standard HO couplers, which helps deliver a realistic model look without sacrificing performance. The lower-shelf design paired with magnetic uncoupling provides smoother operation and a more authentic appearance on an HO layout.