Parts kits enter the market in surplus batches and quickly go out of stock. When looking to buy or source components: DP series semi auto parts and Mods - SmgGunsStore
: To build a legal, civilian-owned rifle, the firing mechanism must be redesigned to fire from a closed-bolt position rather than its original open-bolt machine gun design.
A standard DP-28 parts kit is a collection of parts from a decommissioned Degtyaryov infantry machine gun.
: To comply with U.S. ATF regulations, the original receiver and barrel are heavily destroyed (demilitarized). Barrels are usually torch-cut or wheel-cut, and the receiver is severed into unusable chunks.