Things I liked:Great price for a 5.1 mag. Sturdy build. Fits well. Reliable. Things I would have changed:Plastic base pad has to go. I dropped the mag and the base pad shattered in a million pieces. Replace them with a Nine Ball rubber base pad, and you're done! Once you drop the mag, the base pad WILL crack or break. What others should know:Replace the base pad with a Nine Ball rubber base pad, and you're done!