A quick look at the Delta Armory M4 Proarms MK3 14.5" AEG. Delta Armory Brings Licensed PAR MK3 to Market Delta Armory has secured a license to manufacture the Proarms PAR MK3, adding it to their airsoft lineup. Unlike the vast majority of full-metal airsoft rifles — which rely on zinc castings for their outer components — the PAR MK3's body and handguard are CNC-machined from blocks of 6063 aluminum, a production method closely aligned with real firearm manufacturing. The rifle also features a QRS quick-release spring system, allowing users to swap the spring simply by removing the stock and tube, and a rotary-style hop-up chamber.

On the internal side, the PAR MK3 is built around a PERUN MOSFET unit manufactured in the EU, paired with a stainless steel CNC cylinder, stainless steel CNC mandrel spring, CNC piston head, CNC cylinder head with double gasket, and a CNC nozzle with double seal. A QD stainless steel precision 6.03mm inner barrel rounds out the internals.

The PAR MK3 ships with the rifle and one magazine. A battery and charger are not included in the package and will need to be sourced separately.