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.

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.

• 1/4″ Slotted Screwdriver
• Dual-Lug Castlenut Spanner Wrench
• 1/2″ Hex Wrench for Scope Rings
• Bolt Override Malfunctions Clearance Tool