The Sapien Arms Generation 2 Aluminum Propane adapter is now available.  This version offers improved performance and durability over it's plastic counterpart.  The thread-on cap contains the silicon oil reservoir to help keep your gas magazines properly lubed (light weight silicon oil not included).  Just unscrew the cap, put in a few drops of silicon and you're set for up to 10 fills!  Check out these features:

Aircraft aluminum construction.
Anodized metallic finish.
For AirSoft use only.
Helps clean and lubricate your airsoft gas guns
Enhances Performance
Revolutionary design with silicon oil reservoir.
New thread-on cap with loop for your convenience.
Texturized body for easy grip hand-tightening.
Sapien Logo Engraving.
Does not need to be detached from propane tank to apply silicon oil for your convenience.
Excellent alternative for AirSoft gas products.
Light weight silicon oil not included.