"...just for the hell of it..." Make this bigger.
However, there's not much point, no pun intended, in rifle sights of a big kid's toy that's meant to be pointed.
You might be able to put a ghost ring(large diameter peep) on it for more accurate pointing though. William's Gunsights. They're not stupid expensive either.
https://williamsgunsight.com/product...ire-sight-set/