HRF Concepts CAB (Covert Asymmetric Basepad)


The CAB (Covert Asymmetric Basepad) provides end users with the lowest vertical profile coupled magazine system on the market. By extending the secondary magazine capacity 5 rounds the CAB allows for unhindered movement of the dust cover and use of all control surfaces. Intended for use with 20 round M3 Pmags the CAB is ideal for situations in which maximizing the on platform round count is essential while still maintaining a low profile.

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The CAB uses the original magazine spring and features a standard floorplate lock for the primary magazine and friction locking system for the secondary magazine.

*Only compatible with 10, 20, 30, 40 and 300BLK model M3 generation Pmags. While the CAB is compatible with those options we recommend using a Magpul coupler and plus five basepad of your choice for 30 and 40 round magazines instead of the CAB.*

Magpul PMAG 20 AR/M4 GEN M3 5.56 NATO AR-15 Magazine – Black


  • Material: Nylon Polymer
  • Weight: 01.41oz (40g)
  • Weight unloaded with PMAG 20s.
  • Capacity: +5 to Left, +0 to Right
  • Included Hardware: 8-32 1″ Set Screw
  • Color: Black

Made in the USA


  • Length: 2.90″ (29mm)
  • Width: 2.65″ (29mm)
  • Height: 1.21″ (27mm)

Additional information

Weight 0.088125 lbs
Dimensions 2.9 × 2.65 × 1.21 in


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