New-Old-Stock (NOS) – These unique 9mm Sub-Machine Gun (SMG) upper receiver groups were built by Colt in the early 1990’s for the US Department of Energy (DOE). The standard SMG upper receiver assy was combined with a special design 7 inch barrel, a folding front sight assy, and handguards from the M231 firing port weapon to create this compact weapon system in very limited production.If you are trying to replicate a DOE “suitcase gun” in SBR or select-fire format, these are the pieces to do it.
We also have extra handguard sets for the R0633/M231 weapons.New in the wrap - $250 a set.
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