Basically you have to be able to hold the upper attach the barrel torque down the barrel nut and then the fun starts.
Bar barrel nut shims.
Used for timing hand guard barrel nut.
The ar15 bar barrel nut is used to connect bar style handguards to standard threaded upper receivers.
Compatible with mil spec threaded upper receivers only.
Your new bar barrel nut has been computer machined to ensure ultra exact tolerances and impeccable performance.
Kit comes with 2 001 2 003 and 1 007 thick shims.
Bison armory ar 10 barrel nut shim set 4 pack of 2x 0 001 thick shims and 2x 0 002 thick shims.
This product comes with 4 shims to properly time the gas tube with the upper receiver.
These gun parts from aero precision feature the proprietary bar interface for secure installation and precise fit of your aero precision forends.
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.
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.
Designed into the aero precision barrel nut are four gas port options to make timing your gas tube easier.
Made from high quality stainless steel.
These are 004 thick so they are ideal for very fine adjustments.
Shims can be used individually or combined to get the desired thickness.
That s enough to complete at least 2 upper assemblies with standard barrel nuts aero take more.
Aero precision uses tough 7075 t6 aluminum to create your bar barrel nut then anodizes the surfaces to make it even more durable.
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.