This is a short barrel shotgun, named the Ultimate Over/Under, manufactured in very limited numbers c. 1989 to the early 1990s by Jonathan Arthur Ciener out of Cape Canaveral, Florida using a Remington Wingmaster 870 as the basis. This platform is designed for use underneath the barrel of AR-15/M16 rifles, specifically the M16A2 variation, affixing itself to the bayonet lug and either side of an elongated front receiver pin (not included). It is similar in function and concept to the Knight's Armament Company Masterkey, and was developed in 1989 as a competitor to it in an attempt to gain U.S. military interest. The main purpose in mind was for use in door breaching, utilizing the power of the shotgun to punch a door knob out, and eliminating the need for soldiers to carry an extra standard shotgun along with their standard issue rifle. Because the shotgun has no grip behind the trigger, when firing, the main rifle's magazine functions as a makeshift pistol grip. It is said these may have seen limited use with the Delta Force in Somalia. This is the ultimate rare item and a must have for any serious AR-15/M16 or modern U.S. military collector!

Very fine, retains 95% applied matte gray finish with some light handling marks, and dried sticker residue on the right of the receiver. The bright bolt has some very light pitting on the right. Forend is excellent with limited handling marks. Mechanically excellent. NOTE: This weapon is a National Firearms Act (NFA), fully transferable Class 3, which is registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives, (BATFE) under the provisions of 18 U.S.C. Chapter 44 and 27 CFR part 478.