LWRC ICPSDU5ODG8 IC-PSD 5.56mm NATO 8.5" 1:7" 1/2x28 Bbl OD Green Personal Security Detail Complete Upper ReceiverThe LWRC IC-PSD 5.56mm NATO Complete Upper Receiver ICPSDU5ODG8 features an 8.5-inch barrel with a 1:7 twist rate and 1/2x28 threading. Designed for personal security detail applications, this LWRC ICPSDU5ODG8 upper receiver incorporates LWRCI's short-stroke gas piston system, ensuring reliable operation and easy maintenance. The OD Green finish adds a tactical aesthetic, while the modular rail system allows for customized accessory placement. This compact and versatile upper receiver is ideal for those seeking a dependable and efficient platform for close-quarters engagements..yellow-box p {font-size:16px}.special-tab {color: #FFFFFF}The LWRC IC-PSD Upper Receiver is an ideal choice for custom AR SBR or AR Pistol builds, combining advanced engineering with practical features. It is equipped with LWRCI's patented short-stroke gas piston system, known for its reliability and low maintenance requirements. The LWRC IC-PSD Upper Receiver also includes a nickel-boron coated bolt carrier, offering exceptional resistance to wear and corrosion while ensuring lasting lubricity. In addition, the IC-PSD boasts a modular rail system, allowing shooters to customize accessory placement according to their needs without compromising the upper's low-profile, ergonomic design. This combination of features makes the IC-PSD a versatile and high-performance option for any enthusiast. Features of the LWRC IC-PSD Upper Receiver: Proprietary Short Stroke Gas Piston SystemOne Piece Gas BlockUser Configurable Rail SystemAmbidextrous Charging Handle LWRC IC-PSD 5.56mm NATO 8.5" 1:7" 1/2x28 Bbl OD Green Personal Security Detail Complete Upper Receiver ICPSDU5ODG8