Geissele Super Duty AR-15 Complete Upper Receiver 5.56 Mid-Length – ODG – 16″


  • Forged 7075-T6 aluminum receiver
  • Olive Drab Green color
  • 16” cold hammer-forged chrome lined barrel
  • Chambered in 5.56 with a mid-length gas system
  • SureFire Closed Tine flash hider
  • 15” SMR MK16 free float M-LOK handguard
  • Airborne charging handle
  • Nano coated BCG


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SKU08-220ODG Category

Looking for a top-quality, reliable and durable upper receiver for your AR-15? Then look no further than the Geissele Super Duty Complete Upper Receiver! This complete upper receiver is chambered in 5.56mm and features a Nanoweapon coated Surefire Closed-Tine Flash Hider mounted to a 16” durable black oxide coated, CHF, Chrome Lined 1-7 twist barrel. The mid-length gas tube and Geissele Super Compact Gas Block with bomb-proof installation ensure reliability and optimal performance in extreme conditions.

Included is a brand new, 15” Super Modular Rail MK16 that mates to the upper via a center aligning tab removing any chance of rail rotation. This rail is a variant of the 13.5” SMR MK16, currently fielded by USASOC and renowned by operators for their performance and comfort. So if you’re looking for an upper receiver that is built to last and will offer you optimal performance in any conditions, then don’t look any further than the Geissele Super Duty Complete Upper Receiver!


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