Source: GunsAmerica Actual on January 26, 2014

Rhino Arms
http://www.rhinoarms.com/

Tactical shotguns exist. Some are even highly functional. But an AR lower with a truly modular shotgun upper has been elusive. The fully functional, magazine-fed 12 gauge AR-patterned shotgun has become something of a holy grail. The most successful versions to date have employed specialized ammo. But The Rhino just may change the way everyone thinks about tactical shotguns.

Rhino Arms brought a prototype to this year’s SHOT Show. Its built a magazine that will reliably feed 12 gauge shot shells in through an AR-10 lower. Standard 12 gauge shells. With rims. Designing this has been the biggest hurdle for arms makers to overcome. The new shotgun upper is built over its AR-10 lower and has all of the features its normal line of VV series of rifles it manufactures. The new upper will have an adjustable gas system to allow the user to set it for different loads.

The idea was to make a rifle and shotgun combination for Law Enforcement use. An agency could buy these combos and get more versatility from one registered lower. By pushing out two pins you can swap between a .308 or the 12 gauge. Long range? No problem. Close quarters, or breaching? The Rhino does that, too. It would also be easy to swap over to less-than-lethal shotgun loads.
Rhino Arms hopes to have these ready to go by August. It will offer a standalone shotgun that will run an estimated $2,800 and a combo .308 rifle with the shotgun upper for $5,000.

The Firearms Forum.com