It is not Chinese import and resale.
The bullet tip is shielded from damage unlike other types. A simple, inexpensive, lightweight, and effective spare round holder. Screw holes are recessed. Easy to remove or install. It is compatible with 5.56, .223, and 300 Blackout. Uses one M-lok slot. The fitment is rather tight, so you won't have to worry about any rounds falling out. After some use it will break in. Keymod may work, but it is not yet tested. Other calibers may prove effective, however, I have yet to verify their effectiveness. Ideal for bolt action hunters. One can maintain several distinct types or grains of ammunition within reach. It is supplied with the necessary mounting hardware. It works with the MDT Woox Magpul XLR KRG Bravo, Sig Cross, and many others.
Now available in two material. Polymer for light airsoft use and Polycarbonate carbon fiber for high strength, non airsoft use and heat resistant. Do not overtighten. Loctite is recommended.