Back Panels For Plate Carriers

Back panels are an add-on piece for plate carriers. They allow fast mounting and removing full rear plate bag area with a specific panel to fit mission set. 

How back panels attach

Back panels attach to plate carriers with long zippers on the side of rear plate bag + optional center mounting hardware, usually made from velcro straps, plastic tabs or snap fasteners. Zipper width and length depends on manufacturers but in 2026, the most common mounting standards are 1) Crye Precision standard, used by L4 Performance, Direct Action, Husar, Grey Ghost Gear and ATS 2) UCAS standard, used by Ferro Concepts and Spiritus Systems. 

Crye vs UCAS compatibility

Both systems are kind of compatible with each other: they use #10 YKK zippers but length differs, resulting in some left over zipper on back panel or plate carrier side. For optimal inter brand compatibility you want to secure the zipper slider with paracord, zip ties or L4 Performance Zipper Clip. While YKK zippers in both standards are locking type, even the same standard zippers tend to open up little by little so securing the end is recommended for all use cases.

CQB vs General Use Back Panels

Most back panels on the market are made for CQB, with item specific pouches for entry tools and flash bangs. As CQB is only a small part of military and law enforcement operations, most have been using non-optimal pouch loadout for other use scenarios. 

General use back panels like L4 Performance Turtle Back Panel don't offer item specific entry tool or flash bang storage, but allows having 11 liters of extra space for stuff you need to carry.

Use cases for general purpose back panels:

• Carry the back panel empty with you so you will have room to carry items that are given you during the mission, like ammo from position to position or SSE
• Use the back panel for bladder, MRE, raingear
• Carry comms equipment in it: radios from 152 to 167 size

Back Panels vs PALS Pouches

The idea of back panels is to have a easily removable pouch set. While some roles require fast pouch layout swap, other don't. You can also use PALS pouches to set up pouches to the rear plate bag. If pouches are low profile when empty (for example L4 Performance Wide XXS GP or Large GP), you can easily use them with a ruck over plate carrier. If you have pouches with items inside, ruck compatibility becomes non-optimal and you might want to look for removable panels which can be stowed inside the ruck (or to the back of the ruck with L4 Perfomance 3DAP)  ie while moving to ORP. Low profile back panels, such as L4 Performance Turtle Back Panel, can also be used with a ruck when empty. 

Why does the profile matter with a ruck? The closer the load (items in ruck) are to your body, the lighter it is to carry. The further they push away, the heavier the load gets. 

One benefit of back panels with cable routing capable rear plate bags like L4 Performance Maritime L4PC or ATLAS rear plate bag is that if you carry a HUB, it can be mounted on PALS of rear plate bag with cables running through the plate bag and a back panel over it, allowing more load carriage options and possibility access the HUB by opening one zipper from the back panel.