Give your Tokyo Marui Benelli Airsoft Shotgun a higher capacity magazine with the Salamander Shotgun Magazine Adapter. With this adapter, you can use an M4 AEG magazine, the Marui 1,200-round drum magazine or the ICS 3,000 drum magazine. Mach Sakai tests this magazine adapter in this video review.
Now in stock at eHobby Asia is the SenminSisou Salamander M870 Masterkey Kit for Marui M870 Shotgun. This kit allows you to install the Marui M870 Breacher Gas Shotgun to the underrail of an AR AEG or GBB to serve as the masterkey. Does not come with the Marui M870 Breacher.
Owners of the Tokyo Marui M870 Shotguns can take note of this M4 Magazine Adapter made for it that is now available at eHobby Asia... "SenminSisou Salamander for Shotgun to M4 Magazine Adapter is made of Polymer and can take the M4 Magazine to work with your M870 Series shotgun. This is made for the Tokyo Marui 870 Shotguns."