If the Ikenvape Mega cartos are out-of-stock, try these. They are my backup carto for when I allow my Ikenvape stock to run out.
Single Coil XL Tank replacement 510 cartomizer for 3.5 and 6ml SmokTank XL - w/flange and 1, 2 or 3 holes.
Here's a large list of online vendors that sell pre-punched cartomizers:
List of vendors that sell pre-punched cartos
Single Coil XL Tank replacement 510 cartomizer for 3.5 and 6ml SmokTank XL - w/flange and 1, 2 or 3 holes.
Here's a large list of online vendors that sell pre-punched cartomizers:
List of vendors that sell pre-punched cartos