This M-62 version was produced for a few years in the 1970s M-62 with a stamped receiver 7.62mm and in 5.56mm NATO
The 72s differs only that it has a plastic buttstock. The plastic was not very durable and is prone to cracking.
it uses a more traditional AK style gas block to look more like an AK47
The following is Reprinted from Duncan Long’s “AK47 The Complete Kalashnikov Family of Assault Rifles” published in 1988
Several variations of the M62-76 are made for export; Valmet designates these as the M71 series. The M71 series has the sheet-metal receiver of the M62-76 rifles but slightly different furniture; the firearms are offered in both .223 Remington and 7.62x39mm. Strangely enough, the rear sight position varies on these models; on some, the sight is placed just in front and above the receiver on the barrel, while on others it is mounted at the rear of the receiver cover (which is usually fitted tightly to prevent the zero from drifting). The receiver cover mounting of the rear sight gives a much better sight picture. A semi-auto version of the M71 was developed for U.S. civilian sales; it was designated the M71S.