PKM Parts Layout
Thanks to Illya Kuryakin on Gunco for assitance in identifying some mystery parts. Thanks, Ilya!
The long part on the right side in this pic is the ejector door latch, which apparently knocks the ejector door open during ejection.
Top Cover retainer spring
Gas Tube Retainer
Top Cover Hinge & Detent
Headspace Bearing (Barrel Retainer Bearing)
Gas Piston, Bolt & Bolt Carrier
Recoil Spring & Spring Guide Rod
Belt Feed Pawl & Cover
Riveted to inside of RH receiver
Ejector Port Cover
Unsure as to exact location, but based on the notch cut in the bolt carrier, this is the approximate location:
Trigger Pack Location
Note the engagement notch on carrier
Compared to AKM grip
Note rub marks on LH side of carrier. Possible location for a side rail?
Belt Box Mounting Lug
Rear Stock Tang
Note wear mark on top of tang from the top cover. This lets us approximate the location of the rear of the receiver
Nice field-stripping poster:
Different gun layouts and close-ups:
Note the clamp-on picatinny rail and foregrip, as well as camo tape and scope:
VLTOR receiver pics
Their receiver is best defined as "PK clone" as it is not a true PK styled receiver. Their lower dimple is actually a welded "plate" that is welded into the receiver. Their rails are actually machined and riveted (welded?) to the receiver. As the other images show, a true PK receiver doesn't have these milled/welded components, rather all is stamped/bent into the receiver.