This is a 2 Magazine holder for the tec lok mount. It has 6 holes to put on either side of the tec lok mount to hold your magazines and have them ready.
This allows you to have 1 mag in the gun with 2 others on the side without having to have a pouch.
Very simple and very ez access.
Id suggest printing in CF or something more heat resistant, I ended up printing in CF and it works great for the heat.