Rk 62 The Rk 62 ( also 7 . 62 RK 62 and M62 ; " Rynnäkkökivääri " 62 or " assault rifle 62 " ) is an assault rifle manufactured by Valmet and Sako . It is the standard issue infantry weapon of the Finnish Defence Forces . The Rk 62 was designed in 1962 and is based on the Soviet AK - 47 Polish licensed version design . The Rk 62 uses the same 7 . 62x39mm cartridge as the AK - 47 . Between 1965 and 1994 350 , 000 M62 rifles were produced jointly by Valmet and Sako . The Rk 62 has a three - pronged flash suppressor , and a groove for a specially designed knife bayonet , which can be used alone as a combat knife . The Rk 95 Tp is a more modern , improved version of the Rk 62 . One of the most distinctive features of the Valmet rifles , including the M62 and all subsequent variations , is the open - ended , three prong flash suppressor with a bayonet lug on its lower side . In addition to the flash suppression , the end can quickly cut barbed wire by pushing the muzzle onto a strand of wire and firing a round - noisy but effective . Versions . The first version called the Rk 60 was produced in 1960 and was internally almost a copy of the AK - 47 . It featured a metallic buttstock , a plastic handguard and pistol grip . The very first prototypes , closely modeled after Polish licence made AKs , had tinted birch wood stocks . After testing by the military , the Rk 60 was slightly modified and adopted as the 7 . 62 Rk 62 . The Rk 62 is considered a high quality AK - 47 variant . This is apparent especially in its accuracy , as it can frequently achieve less than one minute of arc . The rifle uses a " peep " diopter sight , which is flipped over to reveal the open tritium enhanced rear night sight . The forward sight has also a mode for night operation . After basic training , some 30 % of Finnish conscripts can score 92 or more points with ten rounds at 150 m distance with target shooting on RK 62 , the bullseye ( 10 points ) diameter being 100 mm . The biggest single improvement , apart from the metallurgical quality of the receiver and the overall quality of the barrel , are the sights - most AK variants have the rear sight mounted on top of the gas piston housing on top of the receiver . In the Rk62 the rear sight is mounted on the rear of the receiver cover with tritium illuminated night - sights . The sight radius is doubled enhancing the accuracy along with the hammer - forged match CM barrel . Aperture rear sight on a sliding tangent with flip tritium night sight , forward hooded post , 470 mm sight radius . In general , all Sako / Valmet Rk . 62 family weapons are first class quality firearms that are designed to withstand the extreme environmental conditions of Nordic Europe . It also should be noted that early Israeli made Galil assault rifles were made on machinery and by documentation bought from Valmet . 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 . 3x62mm . 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 . Variants . Different versions of the weapon include the Valmet M76 , which is a version with a stamped steel receiver that reduces the weight to 3 . 5 kg . The latest version is called Rk 95 Tp , which is able to fire rifle grenade s , can be fitted with a suppressor , telescopic sight and has a folding stock , among other improvements . It is currently used by the Finnish Defence Forces in relatively small numbers . As Sako had bought Valmet ' s small arms manufacturing division , the Rk 95 was manufactured only by Sako . The naval version of Rk 62 has folding stock for easier storage on board the warships . The folding model is also issued to some army units , such as motorcycle scouts and military police . A special version of the Rk 62 featuring the Rk 95 buttstock , fire selector and the possibility of mounting optics is in use with the Finnish border guards ' Special Border Jäger course .