LWRC IC-SPR 5.56mm NATO 16.1" 1:7" 1/2x28 Bbl Black Complete Upper Receiver ICU5B16SPR

LWRCI Complete Di Upper Receiver SPR 5.56mm 16 inch Barrel 1-7 Twist Extended M-LOK Handguard Black 16in. Built on our patented self-regulating short-stroke gas piston system machined from materials that belong to the superalloy family of steel alloys most often used in aerospace raises the bar on reliability and ease of maintenance- delivering the highest level of performance. IC-SPR Uppers with Monoforge design includes an integrated rail-base that is stronger and lighter. The 12in user configurable rail system with individual rail sections allow the shooter to place accessory rails where they are needed while maintaining its low profile ergonomic fit and function. Gas-piston system can be accessed quickly by loosening two thumb screws and removing the top rail section. Our IC SPR Upper uses manufactured- NiCorr treated cold Hammer Forged spiral fluted barrel that is 20percent lighter than unfluted barrels of the same diameter. The increased surface area reduces heat speeds up cooling. Nickel-boron coated bolt carrier dellivers unparalleled wear resistance corrosion resistance and permanent lubricity. The IC- SPR Uppers ships complete with Bolt Carrier Group Ambidextrous Charging Handle H2 Buffer Carbine Length Action Spring and Skirmish Back Up Iron Sights. Specifications for LWRCI SPR 16 inch 5.56mm Complete Di Upper Receiver: Manufacturer: LWRCI Caliber: 5.56mm Barrel Length: 16 in Barrel Twist Rate: 1-7 Color: Black Magazine Included: No Features of LWRCI SPR 16 inch 5.56mm Complete Di Upper Receiver Proprietary short stroke gas piston system Cold hammer forged spiral fluted nicorr-treated barrel A2 birdcage flash hider Skirmish back up iron sights Ambidextrous sling mount 12in user configurable rail system Ambidextrous charging handle H2 buffer Carbine length action spring Package Contents: LWRCI SPR 16 inch 5.56mm Complete Di Upper Receiver LWRCI ICU5B16SPR: Complete Di Upper Receiver SPR 5.56mm 16 inch Barrel 1-7 Twist Extended M-LOK Handguard Black 16in