The AR15 Bar Barrel Nut is used to connect BAR style handguards to standard threaded upper receivers. This product comes with 4 shims to properly time the gas tube with the upper receiver.

Compatible with mil-spec threaded upper receivers ONLY.

Includes:

• BAR Barrel Nut
• BAR Shim Pack (8 shims)

Features:

• Material: Machined from Billet 7075-T6 Aluminum
• Coating: Anodized Black
• Torque with standard AR15 armorer’s wrench (Does not work with Magpul® Armorer’s Wrench)
• Supports Mil-Spec AR-15 barrels with outer diameters up to .998”