Drop In Auto Sear Keychain __hot__ Page

: It sits inside the receiver and trips the sear when the bolt closes, allowing continuous fire with a single trigger pull.

is a small, precision-engineered part that bypasses this cycle. When "dropped" into a compatible semi-automatic receiver (most commonly an AR-15), it trips the sear automatically as the bolt carrier moves forward into battery. This allows the firearm to fire continuously as long as the trigger remains depressed, effectively converting a civilian rifle into a fully automatic machine gun. The "Keychain" Controversy and Legal Reality Drop In Auto Sear Keychain

You might ask: "If it’s so illegal, why do I see these for sale on Etsy, eBay, or Instagram?" : It sits inside the receiver and trips

Under the National Firearms Act (NFA) and the Gun Control Act (GCA) , any part designed solely for converting a weapon into a machine gun is legally defined as a "machine gun". This allows the firearm to fire continuously as

Typically, these are one of three things: