Description

Precision Armament Accu-Washer 1/2” (for 1/2”x28tpi thread for example)
Indexing kit comprising 18 stainless steel washers for indexing a compensator or flash hider by angular values ​​of 20°.

Flat washers for both indexing and squaring of the accessory for perfect alignment with the bore of the barrel.
Recommended for any precision assembly and as a better alternative to the elastic cylindrical-conical washer (the usual crush-washer).
Only one washer is needed for each compensator.
The kit makes it possible to index on average 6 to 9 compensators, according to the dimensions of the barrel and the compensator and their respective manufacturing tolerances.
Washers adapted to a diameter of 1/2” (example: thread in 1/2”x28tpi of the AR-15)
Finish: sandblasted (matt grey)
Made in the USA.
Note: be careful to check that the washer is correctly placed on the shoulder of the barrel, because sometimes there is no clearance groove for the thread and the presence of a radius causes a very slight gap between the washer and the cannon.
In this case, create a chamfer on the inner periphery of the washer then check again the contact with the bearing face of the barrel.
This will have to be done on the control washer (the one used to determine the necessary washer) then on the final washer.
(this simple operation can be done with a Dremel, a file, or a 45° cutter used by hand)