Bar Barrel Nut Shims

Shims can be used individually or combined to get the desired thickness.

Bar barrel nut shims.

Your new bar barrel nut has been computer machined to ensure ultra exact tolerances and impeccable performance. Made from high quality stainless steel. This product comes with 4 shims to properly time the gas tube with the upper receiver. Basically you have to be able to hold the upper attach the barrel torque down the barrel nut and then the fun starts.

These aero precision ar15 barrel nut shims have only one purpose in life to allow you to time the upper receiver with the gas tube. Aac s shim kit includes 6 different shims of varying thicknesses for the purpose of properly timing a flash hider or muzzle brake on a particular barrel offering a far greater degree of precision than that of any crush or peel washer while also being faster and less labor intensive to install correctly. These gun parts from aero precision feature the proprietary bar interface for secure installation and precise fit of your aero precision forends. Designed into the aero precision barrel nut are four gas port options to make timing your gas tube easier.

Product info for aero precision ar15 bar barrel nut and shims use the aero precision ar15 bar barrel nut to install aero precision handguards on standard threaded upper receivers. 5 56 223 free float barrel shim. The ar15 bar barrel nut is used to connect bar style handguards to standard threaded upper receivers. Aero precision uses tough 7075 t6 aluminum to create your bar barrel nut then anodizes the surfaces to make it even more durable.

That s enough to complete at least 2 upper assemblies with standard barrel nuts aero take more. Used for timing hand guard barrel nut. Kit comes with 2 001 2 003 and 1 007 thick shims. These are 004 thick so they are ideal for very fine adjustments.

Compatible with mil spec threaded upper receivers only.