From WE we have a Pistol Gas Magazine for P229.
The Magazine
This is a replica P229 magazine. It has a 20 round capacity and is constructed from metal with the gas inlet valve located in the base of the magazine. It is loaded via speed loader by compressing the follower and inserting BBs above it.
Compatibility
This magazine is designed for WE’s P229 Gas Pistol and any compatibility with other P229’s is unconfirmed.