Compare Ruger AR-556 MOE 5.56mm NATO 16.1 Inch Threaded Barrel Adjustable Sights MLOK Handguard Magpul MOE 6-Position Stock 30 Round MSRP: Was: Now: $799.00 Made from aerospace grade 7075-T6 aluminum forging, the flattop upper receiver includes forward assist, dust cover and brass deflector. Bolt is machined from 9310 alloy steel. Medium contour cold...