/diy/ - Do It Yourself

>>1909775
Coathanger is a diy version of a swift link, a piece that drops into an AR lower to make it full auto only. It depresses the disconnect when the bolt carrier travels forward, thereby releasing the hammer and firing another round, over and over until the trigger is released or the mag is empty.

The shoelace is as per the ATF letter anon posted, pic related. On a rifle with a reciprocating charging handle, the end of the shoelace is tied to the handle, then looped around the trigger. When the keyring is pulled, the rifle fires, the charging handle reciprocates, and as it goes forward again, it creates tension on the shoelace which then pulls the trigger again. It's tricky to make it work in practice, since you need a fairly strong return spring and have a low friction lace, otherwise it binds up and doesn't work. Or so I'm told...

Both the coathanger and the shoelace require an application to the ATF, consigned by your local chief law enforcement officer, get fingerprinted, pay $200, wait a year, and then you can use your registered machine gun. The preeminent legal authorities of the land are confident this was the intent of the Founders when writing the 2nd Amendment.