Magpul Armorer's Wrench

The Magpul Armorer's Wrench represents the most comprehensive single-tool solution for AR-15/M4 assembly and maintenance. Crafted from solid, heat-treated American steel with a manganese phosphate finish, this wrench combines seven distinct tools across its 11-inch length, covering virtually every standard AR-15 assembly requirement. The manganese phosphate finish enhances grip and prevents slippage even with oily hands, while providing corrosion resistance for long-term tool storage.

The wrench's barrel nut interface works with both stock mil-spec barrel nuts and pin-style free-float designs, while the castle nut wrench handles both rifle receiver extensions and carbine castle nuts. Extended teeth provide compatibility with ASAP (Ambidextrous Sling Attachment Point) plates without requiring separate tools. The flash hider wrench accommodates standard A2-style devices, and the wrench features two hammer faces for driving pins and making controlled impacts during assembly.

A standout feature is the 1/2-inch torque wrench interface that allows proper barrel nut torquing when paired with a foot-pound torque wrench. Relevant torque specifications are etched directly onto the tool surface, eliminating the need to reference separate documentation during builds. The tool provides a rock-solid palm platform for applying significant force when needed, while the overall design remains compact enough for field use. The inclusion of a bottle opener (fitting both metric and SAE caps) adds practical convenience for post-build refreshments.