Spare Barrel Nut Wrench for AT3’s Handguards

If you lost the barrel nut wrench for your SPEAR M-LOK handguard or your Pro Quad Rail, or just need a spare, we now offer the wrench on its own.  The wrench fits standard 1/2 Inch drive torque wrenches and breaker bars.  This laser-cut tool provides a precise fit on the wrench flats for the SPEAR and Pro Quad Rail.  Any needs you have for installation and maintenance will be made simple.

Here’s a quick tip: when you’re installing your barrel nut on an upper receiver, make sure your barrel nut wrench is at a 90 degree angle from your torque wrench.  This will provide the most accurate torque for the value you set your wrench to.

Specifications:

• 1/2 Inch Drive
• 1-3/16 Inch Inside Diameter
• Laser-Cut Steel
• Made in the USA