Super HBAR Upper (.812 Journal) Complete Upper Receiver 5.56 16” Black Steel Precision AR Stocks Platform AR10

Precision AR Stocks Platform AR10

S&W M&P 10 and others

Including a last round bolt hold open mechanism and compatible with most standard AR15 barrel nut and handguard combinations this upper receiver will help take your pistol caliber build to the next level

Patented EarLock Retention Rings

Super HBAR Upper (.812 Journal) Complete Upper Receiver 5.56 16” Black Steel Precision AR Stocks Platform AR10At Geissele Automatics, we constantly challenge ourselves by pushing the boundaries of quality and performance. Based on our Super Duty platform, our Super HBAR Uppers feature a thicker HBAR profile, with a . 812 gas journal, custom reinforced . 812 gas block and a significantly thicker Super HBAR straight gas tube. Our Super HBAR Upper effortlessly handles higher volumes of fire without sacrificing match grade accuracy. Foundational to the renowned