L3I magazine extension offers the ability to increase the capacity of your 10 round CZ 457/455/452 polymer magazine by an additional three rounds, giving you the ability to take those extra crucial shots without the need of a magazine change. The extension is made a polymer material using additive manufacturing processes (3D Printing). The extensions are durable and functional. Due to the manufacturing process some surface irregularities might be present.
Installed extension per suggested video. It would only feed 7 or 8 rounds and then the spring would bind. Tried several time with no luck. Contacted Manufacturer and they had a suggestion, but that didn’t help. Aaron replaced the L3i extension with one from Anarchy Outdoors and it works fine. Thanks for stepping up Aaron. Will use A&J for my needs in the future.