Geissele Super Duty Upper 5.56mm 11.5" Black

Out of stock
as of 05/27/2024 1:36PM CST
Store Inventory
Available OnlineOut of stock
Fountain Valley, CAOut of stock
The Colony, TXOut of stock
SKU: GEI-08-218B
MPN: 08-218B
UPC: 817953027387

All NFA rules apply.

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Geissele's Super Duty upper receiver groups features the latest in weapons technology. This complete 11.5" upper receiver includes a 11.5" CHF, Chrome-lined barrel with a 1:7" twist and includes a Geissele Sparkout flash hider. These barrels are precision machined and cold hammer forged in-house at Geissele's North Wales, PA facility. The 11.5" model uses a carbine-length gas system and utilizes a Super Compact Gas Block with bomb-proof installation for reliability and optimal performance.

The Super Duty uses a 10.5" MK16 Modular Rail with M-LOK compatibility and features an alignment tab that mates to the upper receiver. This rail is a variant of the same rail used by USASOC and renowned operators.

Also included is a Geissele REBCG with a Nanoweapon coated BCG for exceptional wear and corrosion resistance. The carrier is constructed from 8620 steel and uses a staked, chrome-lined gas key. The bolt is made from Carpenter 158+ which is forged for a stronger and fatigue resistant structure. Each bolt is inspected, high pressure tested and mag particle inspected.

This is a complete upper receiver and will mount to AR15/M4 lower receivers. All NFA Rules apply.

Caliber 5.56mm/.223 Rem.
Barrel Length 11.5"
Barrel Geissele CHF, Chrome-Lined, Manganese Phosphate
Twist 1:7"
Gas System Carbine-Length, Direct Impingement
Muzzle Geissele Sparkout Flash Hider
Gas Block Super Compact
Rail 10.5" SMR MK16, MLOK
Bolt Carrier Nanoweapon Reliability Enhanced BCG
Bolt Geissele Stressproof Bolt with Asymmetric Cam Pin
Receiver Super Duty w/ cam pin cut out
Charging Handle Airborne
Color Black

All NFA rules apply.

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