These clips are designed to secure the barrel hinge pin while the frame is stored without a barrel attached. This stops the dreaded fumble with the hinge pin when you handle the bare frame.
Price is for 6 pcs. Please specify Contender, Encore, or 3 and 3 in notes.
If you wish to download the file and 3D print them yourself- click here to download the .STL files for FREE.
Here is a video on YouTube to better explain it.