Geissele Super Duty 5.56mm 14.5" Heavy Bbl (.750 Journal) DDC Stripped Upper Receiver (No Charging Handle, Muzzle Device, or BCG) 08-661S

Geissele Super Duty 5.56mm 14.5" Heavy Barrel (.750 Journal) DDC Stripped Upper Receiver 08-661S is built around a cold hammer forged, chrome-lined 14.5" barrel with a .750" gas journal and 1:7 twist, giving builders a proven foundation without locking them into Geissele's own choice of accessories.

This Geissele Upper Receiver runs a mid-length gas system through a Super Compact Gas Block, tuned for reliable cycling across a wide range of 5.56 NATO ammunition. As a stripped upper, it arrives without charging handle, BCG, muzzle device, or handguard, so builders can finish the assembly with whatever components actually fit their intended use case rather than paying for parts they'd swap out anyway.

Finished in Desert Dirt Color with a Picatinny rail on the receiver for optics and accessories, this Geissele Super Duty 14.5 upper is built for custom precision, duty, or hard-use AR configurations. It's matched with a compatible lower receiver and whatever supporting parts the build calls for.

Key Features:

• 14.5" cold hammer forged, chrome-lined barrel, 1:7 twist, Heavy Profile
• Mid-length gas system, .750" gas journal, Super Compact Gas Block
• Stripped configuration — no BCG, charging handle, muzzle device, or handguard
• Picatinny rail on receiver for optics and accessories
• Desert Dirt Color finish
• Fits any mil-spec AR-15 lower receiver
• Heavy Profile barrel for added rigidity and heat capacity
• Built for custom precision, duty, or hard-use configurations

This Geissele 14.5 upper hands builders the hardest part of an upper build — a properly manufactured heavy barrel - while leaving the rest of the parts selection entirely up to them.