From the manufacturer:
The PMAG 15 GL9 is a Glock 9mm handgun magazine featuring a new proprietary all-polymer construction for flawless reliability and durability over thousands of rounds. High visibility anti-tilt follower, stainless steel spring, easily removable floor plate for cleaning, paint pen dot matrix for mag marking, ridged floor plate edges for better grip, and 15rd indicator windows. Drops free loaded or unloaded. All with the same reliability you expect from an OEM magazine.
The PMAG GL9 is compatible with Glock G19 handguns as well as sub-compact variants with some protrusion below the grip.
Features
Our Company Black Butterfly
Ammunition, LLC was created to meet the needs of the discerning, specialty shooters who prefer quality over mass-produced, cheaper than dirt, factory ammunition. Our main company goal is to produce an excellent product that will operate efficiently and effectively in your firearm. Our Products Each round produced by Black Butterfly Ammunition is hand-manufactured and individually inspected by a loading expert, to insure we produce the finest quality ammunition available. This includes visual inspections and appropriate case gauge testing of each round produced. In addition, we randomly sample and shoot our production loads at our onsite range on a regular basis; this way we can ensure it will meet our stringent requirements, and will function properly in your firearm.
Black Butterfly Ammunition company warrants the original consumer purchase for 1 year from the date of purchase. At our discretion, we will replace or refund the original purchase price, provided a proper proof of purchase is submitted; this will be free of charge, except for any shipping charges that might be incurred by the customer to return their product to our facility. Of course, this warranty does not cover product abuse such as neglect, reloading, or any other issues caused by improper handling.