Need help Walther KK300 sights

[Maku]

My 17 y/o son shot at the Junior Olympics first time and did very well in Air rifle, but he did not compete in small bore because he doesn’t have one or that event in JROTC high school. He does shoot 3P air very well, but he wants to attend college and shoot, so we think we have found what seems to be an affordable used Walther KK300 from a current collegiate athlete that got a new from his school.

The KK300 does not have sights on it though (the previous owner removed). Can you please help me what sights would be affordable and work well with this rifle for my son? He would be shooting 3P at 50ft and 3P at 50m. Mostly 50ft though. He plans on attending some open collegiate matches this summer and fall and hopefully junior Olympics next spring too shooting in both disciplines.

Thank you for your guidance.

[pfiori]

Most of the commonly available rear sights, other than for Feinwerkbau, will work. The front sight dovetail is Walther specific and only a Walther specific sight will fit.
I will send you a PM with details on some things that I have available.