Valmet Hunter M88 Firearm Manual is the PDF of the day, this gun is a sporterized AK clone.
It is the civilian model of the Finnish RK 62.
The RK 62 was designed in 1962 and is based on the Polish licensed version of the Soviet AK-47 design. The RK 62 uses the same 7.62×39mm cartridge as the AK-47
The civilian version of the rifle is called M62S, and it is nearly identical in appearance to the RK 62, except for the fire selector which lacks the automatic fire setting.
Valmet has also produced a hunting rifle variant using a further development of the RK 62 receiver, called Valmet Petra, “petra” being an old Finnish word for deer, chambered originally for .308 Winchester and .243 Winchester, but later also .30-06 Springfield and through aftermarket modification, 9.3×62mm.
The Petra was marketed as the “Valmet Hunter” in the US and Canada. It is very different in appearance to the RK 62, having a wooden stock without separate pistol grip, a sporter type front grip, and the trigger has been moved further back on the receiver.Valmet Hunter M88
Also in the event you are interested, all of these gun documents I am posting can be found on the disk I have listed to your left. Additionally to the hundreds of documents I have posted, I have hundreds of gun patents (mostly suppressors) as well as class PowerPoints and targets. all for $5.