It's a custom shotgun this time from Clarence Lai, releasing the Airsoft Surgeon Tanaka Tactical M870 Gas Shotgun which you can order from RedWolf Airsoft... "Airsoft Surgeon used to produce a lot of competition revolvers and shotguns.
Airsoft Atlanta got a big batch of airsoft gun deliveries from Classic Army and one of these is the CA870 Shotgun with the Wood furniture... "The Classic Army S012W CA870 Shotgun is a police style wood stock spring action airsoft shotgun. Full metal and a solid shooter. Single shot per pump (not a tri-shot). Mag holds 20 rounds."
With shotguns becoming all the rage now in airsoft, USAirsoft puts together the Top 5 Airsoft Shotgun Builds as sent in by their fans... "Today I have an amazing show for you all with just some of best looking airsoft shotgun builds from all around the world. The Airsoft shotgun may be where you started as a player but these are no starter guns, we have Tokyo Marui, APS, and a few one of a kind home made creations that must be seen.
Looks like someone just became a more regular user of airsoft shotgun. Poi159 of Walking Dead Airsoft posts this video of him using the CYMA M870 Shotgun... "Using my CYMA M870 Shotgun for a few games. It's my first time using a shotgun, I actually like it a lot. Plenty of people say that the spring on the shotgun when you rack it is too strong, I find it easy to rack.
I will be using the shotgun more now! :D"
MoaiHobby finally got into their shelves the A.P.S. CAM 870 SAI Deluxe Match CO2-Shell Ejecting Shotgun. This comes with the Salient Arms International Markings, this has become a favourite for 3-Gun airsoft shooters. It's got the Magpul Polymer Stock with Grip and has a capacityof 6+1 shell cartridges.
Expected to be in stock in August 2016, Evike.com are now taking pre-orders for the SHS XM26 Shell Ejecting Gas Powered Airsoft Shotgun. Here it is, featured on "The Gun Corner"... "The SHS X26 shell ejecting gas powered shotgun can be used either as a standalone weapon, with pistol grip and adjustable stock attached or as a compliment to your standard M4A1 style Airsoft rifle, mounted under the barrel.
Mach Sakai reviews the Tokyo Marui Benelli M3 Super90 Shotgun. This uses the same spring action as the Tokyo Marui SPAS using a single shell that can hold 30BBs. When fired, it shoots off 33 3 BBs at a time with an effective range of around 100 feet. With its more compact build, this should be ideal for close quarter battles.
A good selection of S&T M870 Spring Shotguns available at Evike.com and they are all very much affordable... "The S&T premier quality shotgun series features a full metal barrel and receiver. Designed for hardcore gamers and collectors, the M870 features realistic construction, high power (380~400 FPS), and tight accuracy.
A good assortment of airsoft shotguns made by CYMA are now available at 18Airsoft. You can choose between the CM.350, CM.351, CM.352, and CM.353 series with metal versions in these series (LM and M designations). If you want affordable airsoft shotguns, then you might want to consider these.

The Wood-type Version of Tokyo Marui's M870 Gas Shotgun is in stock at eHobby Asia... "Tokyo Marui's invention is a novel new shell based system that allows M870 shotgun to shoot between 3 to 6 BB's at a time. Tthis new M870 also has 3 inner barrels, each equipped with a fixed hop-up. Each shell has a capacity of 30 BBs.
The gun only holds one shell at a time, and it only comes with 1 shell on purchase.