When you choose a bundle from the drop-down menu, the description and image will be updated to reflect what is included. (greyed out parts in the image are not included). The 20/21 Stabilizer Kit with Arm Brace is the first truly affordable stabilizer brace kit available on the market. Here's what's included in each kit: MG9 is not compatible. The MG45 Angled Mag Pouch for Large Frame Glocks is compatible. Stabilizer Frame, Brace w/Strap, UCH & GCH17 Charging Handles (low/high profile), Minimalist Sling, Picatinny Side Rails, G7 Holster, MG45 Angled Mag Pouch