AR hold-open link separates upper and lower receiver assemblies, locks them solid, and prevents the receiver from constantly flopping closed. Delrin link installs in seconds and is impervious to solvents. It uses the original rear pin and pin hole for attachment. Lets you easily clean and lube the action or swab out the barrel from the breech end.
This item may be shipped directly to your home address, unless you live in a restricted state.