SMLE Magazine

[5thBatt]

So I noticed while doing some stripping and repairs on my SMLE earlier that the magazine follower is marked with a "3" whereas the spine of the body and reinforcing plate on the front both are marked with a "4", should thus be giving me any issues, like a sticky magazine follower (which I have cleaned since then) or is it a nonissue?

The number is a parts variant, the SMLE mag case went though 4 variations & the auxiliary spring at the front also went though 4 variations but the follower only went though 3 variations, the first 2 variants of the SMLE mag used the same follower.