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Geissele Automatics

Geissele Super HBAR MOD1 Complete Upper

Regular price $1,325.00
Regular price Sale price $1,325.00
Sale Sold out
Tax included. Shipping calculated at checkout.
Barrel Length
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Available To Order
Why buy from B&B

Because you work directly with a family-run business that cares about getting it right.

B&B Firearms is built on faith, family, service, and real product knowledge. When you buy here, you are not supporting a giant corporation — you are working with a veteran-owned family business that values honesty, guidance, and doing right by people.

The Super HBAR upper builds on the Super Duty with a thicker heavy barrel, .812 gas journal, reinforced gas block and a heavier straight gas tube so it can take higher volumes of fire while keeping match-grade accuracy.

  • Super HBAR profile barrel, .812 gas journal
  • Reinforced .812 gas block and heavy straight gas tube
  • 5/8x24 muzzle thread
  • 14.5" P&W or 16"

Specifications

Caliber 5.56MM
Receiver Super Duty Upper w/ cam Pin cut-out
Bolt carrier group Nanoweapon® Reliability Enhanced BCG
Bolt Geissele Stressproof Bolt® with Asymmetric Cam Pin
Gas block Super HBAR Gas Block (.812 Gas Journal)
Gas tube Super HBAR Straight Gas Tube
Charging handle Airborne Charging Handle (ACH®)
Muzzle device Nanoweapon®-coated HUXWRX Flash Hider-QD 6
Muzzle thread 5/8 x 24

Configurations

Barrel Length Overall length Weight Gas system Gas port size
14.5" 24" Approx. 5.2 lbs Mid-Length .076"
16" 25 3/8" Approx. 5.5 lbs Geissele Length .075"

Notes

Please note, there are two different versions of the Geissele heavy barrel. This product features the .812 journal Super Heavy Barrel and it includes the Geissele Super HBAR Gas Block (.812) and Super HBAR Straight Gas Tube.

Disclaimer: The Super HBAR Upper features a Nanoweapon® Coated HUXWRX Flash Hider-QD 6 5/8x24, which is a 6mm flash hider compatible with 5.56 NATO. Please note that while this muzzle device is compatible with larger caliber HUXWRX suppressors (like the FLOW series 6k and 762 Ti), it is NOT compatible and should never be used to attach to any caliber firearm larger than 6mm.

NFA DISCLAIMER/WARNING: This item meets the 16" minimum barrel length requirement with the pinned and welded muzzle device, however it requires registration and a tax stamp with the Bureau of Alcohol, Tobacco, Firearms and Explosives (BATFE) if the muzzle device is not permanently attached when assembled into a complete rifle. Additional state and local restrictions may apply. It is the sole responsibility of the buyer to comply with any and all applicable laws.