Metal Constructed Adaptor 

- Octagon Black Steel Adjustable Gas Output Valve

- Equipped With Air Tight Rubber & Magazine Lip 

- Maximized Gas Efficiency 

- Drop-in Adaptor Set, Ready to Install Out of the Box

- Fit For AW / WE AR Gas Drum Magazine

- Compatible With Tokyo Marui TM SAIGA 12 GBB Shotgun Series 

MAY REQUIRE MODIFICATION TO THE DRUM MAGAZINE