The old, old H&R used to build a nifty little .410 pistol, prior to 1935. But in those days they used different frame sizes for different bore sizes and the .410 was built on a .410 size frame. Today, all H&R/NEF handi rifles are built on 12 gauge size frames and that would make a very awkward and clunky pistol. They would need to start from scratch to build a real pistol to compete with T/C and that market is already pretty well filled.