DRD Tactical, the company that bought us the innovate stealthy Paratus-16, have now developed an AR-15 upper receiver that uses the same quick change/detach barrel and handguard system as the Paratus-16. The rail/handguard unit can be quickly detached from the upper receiver, decreasing the space required to store the rifle. DRD Tactical is also selling a hard case with pre-cut high density foam …
Two models are on offer. The P556-FN model comes with 16″ FN Hammer Forged chrome lined barrel and flash hider. The P556-LW model comes with 16″ Lothar-Walther stainless steel barrel and flash hider.