Rare Glock 19 Mariner 9mm, Factory Case, 2 Mags

Intended for "an undisclosed foreign government" the contract for the Glock 19 Mariner was not completed and these interesting and very functional collectibles are now filtering out to the market. 

The Mariner label dates to at least 2005 and was used by Glock in marketing to countries in the Pacific Rim (Indonesia, Malaysia, the Philippines, Taiwan, Thailand, and Singapore are all military/police Glock-users) and elsewhere for models that include "Maritime Spring Cups" as a standard item. 
 
As explained in ads for OEM Glock Maritime Spring Cups: 

This is an internal part that captures the striker spring in the slide. It allows water, oil, and debris to exit the firing pin channel. This enables the pistol to be fired after it’s been submerged in water and in extreme hostile environments without field stripping the slide assembly.