Ruger 10/22 made in 2002  total 10k rounds through it , looks good but has wear from use . some chipped paint on the reciever is all cosmetic
Has metal trigger group
Butler creek SSBB 20 inch with 5000 rounds through it
Hogue overmolded stock
Rock mount bipod 9x13
leopuld scope base
simmon 3x9 8 point scope thats new with simmons rings
buffer techolgies bolt buffer widget
3 factory mags and 2 hotlips 25rnd with platic lips and 2 with metal lips
guys wants 350$ for it , he also has one of those tapco stock kits for it that he would throw in for 50$ more as an AR trainer
shoots damn good , quater size groups at 50 yards with wolf match.

buy it?

Sounds about $50 too much to me

Nope.  You can get a brand new base model 10/22 for $225 or so and you can get the Butler Creek barrel for a shade over $100.

In short, you can have what he's got, except brand new, for the same money.

$250 is fair

Exactly.  Or like noted above, buy new and get it 100% like how you want it.  Trigger guard is no biggie; Ruger's website has a video of them dropping weights onto the polymer housing and it doesn't break.