Was looking for amount solution for my Sig Sauer MPX SBR...and Spartan Mounts had me covered. This quality mount provided the mounting option I was looking for (wish I was able to upload photos of this on display).
Other Spartan Mounts that have me covered as well:
AR-9
Custom AR-45
AR-10
Sig Magazine Mount (Holds 3)
Glock 19/17/34 Double Stack Magazine Mount (9mm Holds 3)
Glock 21 Double Stack Magazine Mount (.45 ACP Holds 3)
Look forward to doing additional business with Spartan Mounts!