Multitasker M4 TOOL

The M:4 is a patent pending 1-piece multi-tool for the M4 carbine designed and manufactured by MultiTasker® in conjunction with B5 Systems, makers of the SOPMOD and SOPMOD-Bravo buttstocks.

(4 customer reviews)

This product is currently out of stock and unavailable.

The M:4 is precision machined from solid barstock using wire-EDM/CNC, and fits discreetly with no visible footprint inside a specially inletted buttpad made by B5. Easily accessible without tools simply by pressing the release tabs on the buttpad. Dot coded to indicate functions.


  • Hollow ground 3/8’ slotted screwdriver
  • Dual-lug M4 castle nut spanner wrench
  • 1/2“ hex wrench
  • Bolt override malfunction clearance tool
  • 420 stainless with Melonite® finish
  • Dimensions 4” x 0.5”
  • Weight Less than 2 oz
  • INCLUDES Butt Pad

Additional information

Weight .2 lbs
Dimensions 8 × 4 in


4 reviews for Multitasker M4 TOOL

  1. devenstone0 (verified owner)

    Freaking cool! Fits great.

  2. xragingxninjax (verified owner)

    Cleaver tool, functional and stored well.

  3. Wes McDonald (verified owner)

    Functional tool. Quick shipping

  4. LetYaMeatHang (verified owner)

    This is great, a must have for the compatible B5 stocks.

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