MidwayUSA currently has Nikon rimfire scopes on sale:
3-9 with BDC
typically $120
on sale $90
https://ads.midwayusa.com/product/387270/nikon-prostaff-rimfire-ii-rifle-scope-1-tube-3-9x40mm-bdc-150-reticle-matte
4-12 with BDC
typically $140
on sale $100...