I want to compare the russian army weapons and rest of the world. In my opinion, russia has the best weapons, simply. USA is close second, and 1st in specific domains (sniper rifles). German army probably has great weapons too, chinese army is not bad.
I only want to talk about current military/police weapons in service.
In all honesty, is there any better group of weapons for infantry than those used by russia? I can't think of better alternatives
AK-74M: this basic rifleman's rifle is simply foolproof, modulable enough, and perfectly accurate and powerful. Unmatched reliability and durability. AK-74M can be made into sexy FS rifles with more and more aftermarket parts, more and more are made in russia. Basically all spetsnaz of MVD or FSB currently use modded AK-74M rifles, and light mods are used more and more in army "elite" corps, like recon troops of army, or VDV. Probably the best service rifle in use worldwide, and fits perfectly russian army.
PKM/PKP: this light GPMG is always compared to the M240 FN MAG and more rarely the MG3. Everyone has his opinion, but all recognize it's at a place between 1st and 3rd... To me, it's 1st, lightweight, foolproof and more reliable than others (others are reliable like rocks too, but...), the cartridge is kick ass, and simply you can't make any better MG than what kalashnikov did on this one, only you can modernize and improve it. PKP might be the best LMG worldwide, more even than current SF weapons like MK48.
SVD/SVDS: this multipurpose rifle is basically the most common and used sniper rifle of russian army. in the last 20 years, many specialised elite units aquired different systems for their needs, sometimes western rifles, mostly bolt actions. Still, the SVD remains a top squad support weapon, and a fine specialised sniper rifle. PSO-1 scope is reputed to be excellent, but the x4 power limits somehow the potential of the SVD.
RPG-7: Often laughed in western medias recently due to guerilla wars and problems with effectiveness, the RPG-7 in russian army are not dirty clones you can find in middle east, and more especially the russian dotation rockets are top notch. Remains the best pocket artillery available to a group of infantry to me, good weight, large variety of ammo, and quite accurate. The anti tank capability is still correct with modern rockets : 550mm for standard dotation PG-7VL and 750mm for specialised tandem PG-7VR.
Add to this weapons in russian army that have no equivalent worldwide:
9x39 compact weapons series, from AS val to VSK-94, supressed or not, these weapons are widely in service in all branches of russian army, and fill a niche that no other weapon worldwide could fill so well.
KORD heavy machinegun, seems like russia developped the best HMG ever, and is puting it in service in great numbers. Hell, even the older NSV is a great weapon, but much less accurate and durable than KORD. Rest of the world with M2HB and DSHKM look retarded of 1 century. I could even mention the 14.5mm KPV, but it's almost always a vehicle weapon, so.. not really interesting for this topic
AN-94 and AEK-971, these weapons, both of which are in limited service (more the AN) are unique assault rifles with extreme potential and improvement over classic rifles, the latter will certainly replace the AK-74M in massive quantity in 10-15 years.
Russian SMGs are great weapons too, russian pistols are great, PYA and GSH-18 are fantastic service pistols, APS is unique, makarov is still good, PSS silent pistol is a great weapon unique in its genre. Not to mention SPS Sr-1 high power 9mm pistol.
The russian underbarel grenade lauchers: GP-25/30/30M/34, caseless 40mm devices, compact... Just uncredible. This GL is simply the best, and the grenades for it (old VOG 25 or modern current issue (can't remember the names)) packs always more explosive than western 40x43mm grenades. in russian army, you can have up to 1 GP-25 for every 2 men... Simply unrivalled.
What has the world better to offter? M4 carbines? FAMAS? lol... What would you take for undercover mission, SR-3M special rifle in 9x39mm or M4 with supressor and paltry 5.56 subsonic rounds?
What pistols could rival PYA or GSH-18? Glocks? Already proven to be inferior.
What semi auto rifle could rival the SVD? There might be more chances here, M14 scopped/ M21, M110 are nice rifles
What SMG can rival the AEK-918, SR-2, PP-2000, PP-9 Kedr, PP-19 vytyaz/bizon in their respective niche?
Would you take any other service rifle over AK-74M?
In my opinion, the russian infantry platoon offers the best firepower you can find, maybe rivaled only by US army.
For special purpose weapons, russia n°1.