Keystone Inset, LC-LC coupler.

This is a Keystone style connector that I made to replace the faulty one that came with my LC fiber optic coupler. It will only work with all plastic style LC-LC couplers and not metal-clip ones. Please ask if you have any questions.

EDIT(7/16/16 | 11:15 UTC): I printed and realized I modeled this incorrectly in a few areas. I have corrected the errors and re-uploaded.

EDIT(7/19/2016 | 9:07 UTC): Minor sizing adjustments made to improve fit.