You will want to use MPN: E-10 and MPN: O-24 found here for the Strike Eagle:
https://www.opticsplanet.com/vortex-defender-objective-flip-caps.html
What am I missing.......the description says flip caps are included with the Vortex.
Depends on if you’re looking for an ARD set up or just flip caps. If you’re after the ARD, (anti reflective device) to eliminate scope shine, setup you will need Tenebraex parts the part #s are tx0012-ard for the ARD, 24mmuo-fcv is the flip cap for the ARD, and uac002-fcr for the ocular. These can be found several places on the internet. As for the regular flip caps you can find them everywhere.
flip caps came included on my opmod