Geissele Super Duty 5.56mm 14.5″ Heavy Black Stripped Upper Receiver 08-661B

Geissele Super Duty 5.56mm 14.5″ Heavy Black Stripped Upper Receiver 08-661BThe Geissele Super Duty 14.5 Heavy Barrel Upper delivers a rock-solid foundation for a premium AR-15 build combining durability precision and duty-ready reliability. Geissele08-661B features a 14.5-inch cold hammer forged chrome-lined heavy barrel with a .750a ^2 gas journal and a 1:7 twist rate-providing excellent stabilization and consistent performance across a wide range of 5.56x45mm NATO ammunition.The mid-length gas system paired with Geissele’s Super Compact gas block ensures smooth cycling controlled recoil impulse and dependable operation under demanding conditions. As a stripped upper receiver it gives builders the flexibility to select their preferred handguard charging handle bolt carrier group (BCG) and muzzle device-allowing for a fully customized configuration.Finished in a rugged black anodized coating and equipped with a full-length Picatinny top rail this upper is ready for modern optics and accessories. When matched with a compatible lower receiver it forms a robust precision-oriented platform suitable for professional competition or hard-use rifle builds. Manufactured in the USA it reflects Geissele’s reputation for uncompromising quality and performance.