Hi everyone,

I recently received a MARS from Rainier Arms to check out. The MARS, Magazine Advanced Release System, is an ambidextrous mag release for generation 1-3 small frame Glock pistols. It is a very well made piece that performs very well. In this video I go technical aspects of the item as well as installation. In a future video we will go over usage and some range drills to finish the review.

Thanks, Dave