Versatile B5 Systems MTR1395 Multi-Tasker Tool - Premium Black Barstock for M4 Carbine
The B5 Systems MTR1395 Multi-Tasker Tool is a compact, purpose-built multi-tool engineered specifically for M4 carbine owners who want essential functions within arm's reach. Precision-machined from solid barstock using CNC and wire-EDM processes, this single-piece tool nests discreetly inside a specially designed B5 buttpad, staying out of sight until you need it. No bulky pouch, no external attachment points—just accessible functionality integrated into your stock.
Designed in partnership with B5 Systems, makers of the SOPMOD and SOPMOD-Bravo buttstocks, the MTR1395 gives you four field-critical functions in a package that's barely noticeable. Press the buttpad's release tabs and the tool slides out without tools or fuss. The flat profile fits the buttpad inlet seamlessly, so there's no visible footprint when stowed. Measuring 4 inches long and 0.75 inches wide, it's sized to stay compact without sacrificing usability.
Function-specific design means you can identify each feature at a glance thanks to DOT coding marked right on the tool. Whether you're at the range, in the field, or performing routine maintenance, having a slotted screwdriver, castle nut spanner, hex socket for scope mounts, and bolt override all in one integrated tool eliminates the need to fumble through a pack. The barstock construction delivers the durability you expect from B5 Systems—no plastic, no compromise.
Key Features
- Four integrated functions in one precision-machined tool
- Nests inside B5 Systems buttpad with no external footprint
- CNC/wire-EDM machined from solid barstock for durability
- Press-release access—no additional tools required
- DOT-coded markings for quick function identification
- Compact 4" x 0.75" profile
Specifications
| Manufacturer | B5 Systems / MultiTasker |
| Model | MTR1395 |
| Platform | M4 Carbine |
| Material | Precision machined barstock (black) |
| Length | 4 inches |
| Width | 0.75 inches |
| Installation | Inletted B5 Systems buttpad (included with compatible stock) |
| Functions | Slotted screwdriver, castle nut spanner, 1/2" hex socket, bolt override |
Frequently Asked Questions
Will the MTR1395 work with my M4 carbine?
Yes—the tool is designed specifically for M4 carbines and installs into a specially inletted B5 Systems buttpad. It fits discreetly inside the pad with no external protrusion.
What B5 buttstock does this work with?
The MTR1395 is designed to nest inside a B5 Systems buttpad that has been specially inletted to accommodate the tool. It is compatible with B5 SOPMOD and SOPMOD-Bravo buttstock lines that feature the compatible pad.
How do I access the tool when I need it?
Simply press the release tabs on the buttpad and the tool slides out. No additional tools are required to retrieve or stow it.
What functions does it include?
The MTR1395 provides four functions: a slotted screwdriver, castle nut spanner, 1/2-inch hex socket for scope mount fasteners, and a bolt override feature. Each function is DOT-coded on the tool for easy identification.

