Inside, the 990’s durable gas system, corrosion-resistant internal parts and finishing, plus an enlarged/beveled loading port, elongated elevator, and anodized follower combine for smooth operation. Outside, the adjustable SGA stock allows incremental length-of-pull flexibilty, a tactical forend with an integrated heat shield and multiple mounting slots and ports provides accessory flexibility. The optic-ready cut receiver comes equipped with a rear ghost ring sight plate paired with the winged front fiber optic sight. The cut allows direct mounting of RMSc footprint micro dots— with additional provided adapter plates to accommodate other popular optic formats.

• Optic-Ready (Shield RMSc Footprint)
• Includes 3 additional adapter plates for mounting RMR®, Docter™, and Leupold® footprint optics
• New design forend features an integrated heat shield, multiple M-Lok accessory slots, and QD ports
• Metal ghost ring sights
• Smooth running gas-vent system
• Oversized ergonomic safety and bolt release
• Magpul SGA Adjustable LOP stock/spacers with QD ports
• Drilled and Tapped Receiver