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Underground Partisan Chest Rig

(45 reviews) Write a Review
Lead Time::
1 - 3 Business Days


The Underground Partisan Chest Rig is designed to be an ultra low profile chest rig that can be worn unnoticed under a light jacket or even sweat shirt in an “underground” situation. The U.P Chest Rig is an innovative design – thoroughly tested and endorsed by author and former U.S. Army Special Forces 18 Bravo, John Mosby (JM) from Mountain GuerrillaThis rig has been designed as per JM’s requirements and specifications.


  • 4x elastic 5.56x45mm rifle magazine pouches fitted for optimum retention
    • 7.62x39mm AK magazines will also fit, but please note that premature wear may occur due to the locking tabs
  • A hook panel backing allows the rig to be fitted to a loop velcro equipped plate carrier
    • A loop cover panel is provided when using the chest rig by itself
    • We offer an Elastic Tourniquet Holder (not included) that can be attached to the hook backing
  • Vertical webbing loops allows slotted buckles (included) to be installed to hook into plate carriers with integrated female swift clip buckles
  • Side webbing loops can be fitted with removable slotted female buckles (included) to connect to our H-Harness OR a plate carrier fitted with side attachment buckles
  • H-Harness is included with this product

45 Reviews Hide Reviews Show Reviews

  • 5
    Absolutely Perfect

    Posted by Larry K. on Dec 4th 2020

    This is by far the best minimalist chest rig I have ever used and I have used them all. Amazing quality, Amazing design it can't be beat. Buy it you will love it.

  • 5
    Versatile rig for almost every situation

    Posted by William M. on Dec 4th 2020

    Extremely happy and impressed with this rig. Can either clip to a carrier, wear over soft armor or concealed under a jacket.

  • 5
    Highly Recommended

    Posted by Will K. on Dec 4th 2020

    I got one of these chest rigs to use with and without my plate carrier. The construction is intuitive and very solid. It was easy to remove and replace mags into the rig one handed. I could get it tight enough that I could run with it on. Highly recommended, especially at his fair price.

  • 5
    Partisan chest rig

    Posted by Anonymous on Dec 4th 2020

    Good quality . Everything was as advertised .

  • 5
    Great Lo-Pro Rig

    Posted by Anonymous on Dec 4th 2020

    Rig is great. Low profile, tight retention without being too tight.

  • 5
    Partisan Chest Rig

    Posted by Thor T. on Dec 4th 2020

    Fit and finish are great. Run it on the range and on trails with zero issue. Will definitely be ordering again!

  • 5
    Great buy

    Posted by Anonymous on Dec 4th 2020

    Overall craftsmanship outstanding. More then I expected. This was recommended to my by a US servicemen.

  • 5
    11 of 10, will order again

    Posted by Anonymous on Dec 4th 2020

    I could not be more pleased with the new edition of the Mountain Guerrilla Chest Rig. The rig is adjustable, quite low profile, light weight yet rugged, offers two wear positions, and has superb retention. All for a fraction of the cost of a competitors rig. The rig also mates nicely with my current older school LBE (non plate carrier) set up. This rig hugs the body and doesn’t bind up as I move, get prone, rise to a quarter or half mount, and then back to my feet. It doesn’t shake if I jog or run. It doesn’t retain unnecessary body heat when you are active.

  • 5
    Quality Rig Great Price

    Posted by Patrick Black on Dec 4th 2020

    I bought the Partisan Rig in 5.56 about a year + ago and have used it often enough to know this thing is built right. I love it so much I just ordered a rig for my EBR kit. Thanks for producing a top notch piece of kit.