Not being ~fluent~ in Japanese Arisaka particularities I can offer up only the most basic information on this Type 99: Late war, non-chrome bore, non-knurled safety, anti-aircraft sights. standard Metford-type rifling. Mum is ground. Non-import marked. Overall condition: pretty dang good.
And it has a MATCHING NUMBER BOLT! That was the major impetus for buying it over 25 yrs ago for $100.
Hiroshima Prefecture mfg.
I have fired it with Norma factory ammo and it surprised me how accurate it was with that ammo. Fired only once with cast bullets so they weren't particularly accurate using Lyman 311299 sized .311" with Unique.
The chamber of this rifle is OVERSIZE. So much oversize that I almost couldn't re-size the Norma brass in a Rockchucker press. I did get it resized and the 2nd loading was mild cast bullet level and that proved fairly easy to resize the brass.
As a Mauser collector, handloader and shooter I can offer up my humble opinion of this rifle. You could do a lot worse than this rifle. The stockwood is soft so the weight of the rifle is [seems] to be much less than a comparable Mauser military rifle. Function is excellent. Power of the cartridge is excellent, equal to 7.62x51 NATO. I would've preferred one of the earlier models with chrome bore but this is what it is.