The LWRCI IC-PSD 8? Upper in Olive Drab (OD) Green is a high-quality compact upper receiver assembly built around LWRC International’s proprietary short-stroke gas piston system for reliable performance and smooth operation in close-quarters configurations. Chambered in 5.56 NATO / .223 Remington, it features a cold-hammer-forged 8? (nominal) barrel with a 1:7? twist rate and 1/2?-28 TPI threaded muzzle for attaching muzzle devices or suppressors. Finished in Olive Drab (OD) Green Cerakote for corrosion resistance and rugged tactical styling, the upper includes a monoforge one-piece rail system with modular rail sections and an ambidextrous charging handle. Designed to mate with any standard AR-15-pattern lower receiver, this OD Green IC-PSD upper provides a solid foundation for a compact rifle, SBR, or pistol build that combines modern ergonomics with LWRCI’s renowned construction quality. LWRCI ICMKII PSD 8" Bbl OD Green Upper ICMKIIU5ODG8