H.Koon Inc. Snake Charmer .410 Shotgun
The original model .410 Snake Charmer top break shot shotgun introduced in 1978, by H.Koon, Inc, of Dallas, Texas was 28 1/8" long with a shortened plastic stock and integrated pistol grip. It was a simple top break style shotgun with no safety mechanism other than a de-cocked hammer with a catch to relieve pressure from the firing pin when in storage. The Snake Charmer’s weight is kept down in part by the polymer thumbhole stock. Including its 18” stainless steel barrel, the Snake Charmer weighs in at only 3.6lbs.
The original model Snake Charmer, also known as the Snake Charmer I, is designed to chamber 2 1/2" .410 shells and will not accept 3" long shells.
Mr H. Koon sold his company, H.Koon Inc., to Sporting Arms Mfg, of Littlefield, Texas. The new owners modified the original design by adding a manual safety switch which blocked the hammer when engaged and re-brand it as the Snake Charmer II. Furthermore, the model II would now accept 3" .410 shells (according to this source) as well as 2.5".