The FN M249S PARA, part of the Military Collector Series, is a semi-automatic version of the FN M249 PARA, designed for airborne and close quarters combat operations. It mirrors the features of the standard FN M249 SAW but offers a shorter barrel and a collapsible buttstock for enhanced maneuverability. The PARA can be quickly converted back to the standard model configuration in about 30 seconds. The FN M249S PARA is built with a robust gas piston system and a formed steel receiver. It features a folding steel bipod and carry handle, along with a flip-up feed tray cover and feed mechanism. The top-cover integrates MIL-STD-1913 rails for mounting optics. The barrel is cold hammer-forged, with a hard chrome-plated bore and chamber, and supports quick-change capability. The removable heatshield enhances operational versatility. The stock is a rotating, telescoping type with a hydraulic recoil buffer and non-slip buttplate. Operating controls include a crossbolt safety, redesigned trigger mechanism for semi-automatic fire, and a non-reciprocating charging handle. The feed system uses a disintegrating link belt-fed mechanism with an under-mounted polymer ammunition container, which helps maintain ammunition cleanliness and reliability. The FN M249S PARA Gen 2 introduces several notable upgrades, including an enhanced rotating, telescoping buttstock with a hydraulic recoil buffer and non-slip buttplate. The top cover now features advanced MIL-STD-1913 rail systems for better optics mounting, while the trigger mechanism has been refined for more reliable semi-automatic firing. The barrel has been upgraded with hard chrome-plating and quick-change capability, accompanied by a more effective heat shield. The Gen 2 model also includes an under-mounted polymer ammunition container that helps keep ammunition cleaner and enhances overall reliability.