Silhouette AutoBlade v2 for Use with Cameo 4- Pack of 3 Blades with 101 Guide - Walmart.com
Reliable 2750 Auto Adamas® Tactical Folding Knife | Benchmade
Amazon.com: Silhouette AutoBlade for Cameo 4 : Industrial & Scientific
Silhouette AutoBlade v2 for Use with Cameo 4- Pack of 3 Blades with 101 Guide - Walmart.com
Silhouette Cameo AutoBlade for Cameo 4 and Portrait 3
The AutoBlade for Cameo 4
Here's an OTF auto knife for sale on, wait for it, Amazon. It's probably junk and I'm pretty sure it violates Amazon policy but here you go. Link is in comments. :
Propel Downrange Auto | Gerber
Auto Push Button Wood Handle Pocket Knife - Edge Import