Geissele Super Duty AR-15 Complete Upper Receiver 5.56 Mid-Length – 40mm Green – 16″


  • Forged 7075-T6 aluminum receiver
  • 40mm 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


Out of stock

Want to be notified when this product is back in stock?

SKU08-220-40G Category

The Geissele Super Duty AR-15 Complete Upper Receiver is designed for the most demanding operators who require the utmost in performance and reliability. This complete upper chambered in 5.56mm features a Nanoweapon coated Surefire Closed-Tine Flash Hider mounted to an 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. The Geissele Super Duty AR-15 Complete Upper Receiver is sure to provide many years of reliable service in even the most demanding environments.



There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.