Bar Barrel Nut Shims

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.

Bar barrel nut shims.

This product comes with 4 shims to properly time the gas tube with the upper receiver. Your new bar barrel nut has been computer machined to ensure ultra exact tolerances and impeccable performance. These gun parts from aero precision feature the proprietary bar interface for secure installation and precise fit of your aero precision forends. Aero precision uses tough 7075 t6 aluminum to create your bar barrel nut then anodizes the surfaces to make it even more durable.

Made from high quality stainless steel. 5 56 223 free float barrel shim. Bison armory ar 10 barrel nut shim set 4 pack of 2x 0 001 thick shims and 2x 0 002 thick shims. Measure the gap take off the nut and install the right number of ar15 barrel nut shims.

Compatible with mil spec threaded upper receivers only. Basically you have to be able to hold the upper attach the barrel torque down the barrel nut and then the fun starts. Used for timing hand guard barrel nut. 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. 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. That s enough to complete at least 2 upper assemblies with standard barrel nuts aero take more. Kit comes with 2 001 2 003 and 1 007 thick shims.

Ar 15 barrel nut shim kit allows you to index the barrel nut so you have perfect barrel nut gas tube as well as top rail alignment within the recommended barrel nut torque ranges.