For Sale: One spacer to use with .22lr silencers on AR-15 rifles with .22 conversion units installed. It will also work on other weapons including 10/22's and Kel-Tec .22lr pistols and rifles with threaded barrels. The spacer is designed for use on 1/2-28 threaded barrels that have a thread length of 0.6" long, and silencers that are designed for use on thrreads that are only 0.4" long. The spacer is 0.2" thick and is lathe turned from steel bar stock. The outside is 0.84" in diameter. The part is bored slightly oversized before threading the inside of the spacer so it will be easier to remove from the host weapon after firing. The shoulders are completely square so the silencer will be concentric to the bore of the rifle. The part is not finished with any coatings, but can be blued with cold blue or finished with paint, duracoat, or molyresin. They are available blued or coated with molyresin, but this one is unfinished. Shipping will be $2 to US addresses only. Paypal will be fine as long as payment is discrete. Local pickup is free, and I'll also take cash, checks, or money orders. The spacer is new in the retail package.