Geissele Super Duty Upper Receiver Group 14.5" Mk16 ODG partially stripped

ships from our shop in 3 to 5 days (+/-)
Factory New in Box:
no BCG, no c/h, but with flash hider

Geissele Super Duty Upper Receiver Group 14.5" OD Green 5.56mm, partially stripped

Includes factory pin and welded Surefire Nanocoated close tine flash hider

The 14.5” upper receiver in 5.56mm features an OD Green upper receiver mated to a unique Mk16 MLOK rail with 14.5”  Black Oxide coated, Cold Hammer Forged Geissele, Chrome Lined 1-7 twist barrel, with nano-coated Surefire closed tine Surefire SOCOM flash hider and a Geissele low profile bomb-proof factory installed gas block.

This is a Geissele Factory upper. For the gun owner looking to build an AR-15 from the ground up with maximum performance-enhancing features, this fully assembled upper receiver from Geissele is a perfect compliment. Geissele Automatics has been a leader in AR-15 products and accessories for years, offering excellent quality and rugged dependability to the war fighter, competitors, and defender alike.

Geissele barrels are a new line for Geissele in 2020, and further refined in 2021.  The barrels are precision machined and cold hammer forged. The mid-length gas system is perfect for the 14.5" barrel, and includes a Geissele gas Block installed at the factory with both lower set screws and a through the barrel pin.  This is something Geissele has been doing since 2018.  Is it necessary? No.  Extra protection from a gas block moving, which was never going to move in the first place, but something about the Geissele name has that German sound to it, that causes the entire firm to over-engineer, like Mercedes.

The newly designed 10.5” Super Modular Rail MK16 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 one of Geissele's best sellers and best ideas.  At Charlie's, we like the way in which the upper mates to the rail, which also is a crutch to better align the rail and upper receiver.  That is a good thing.

Note:  This is a factory new item, complete with factory installed flash hider, but stripped with no BCG and no charging handle.

Note:  Geissele has, over the years, used a number of forgings for their upper receivers, as well as a number of different flash hiders.  This particular forging in 2021 is either Brass Aluminum or Mueller forging.  No matter the forging, Geissele is testing each upper receiver for functionality and blemishes before putting a passing grade on the upper receiver.  Don't get hung up in the super details.  Trust the gun maker to make the right sourcing decisions.  We do.

The Super Duty Complete Upper from Geissele Automatics offers unmatched performance, accuracy and reliability.

Note:  ODG color can appear from tan to beige to green in pictures.  Actual colors do vary quite a bit, but for some reason, pictures accentuate the differences. There may also be variations in the finish. See the explanation of "Variations on Finish" on the Geissele site.


LENGTH:  14.5", pinned and welded to 16.0"
COLOR:  OD Green Anodized
RECEIVER:  Geissele Super Duty Upper w/ dovetail cut-out (only fits Geissele Mk16 dovetail rail)
BOLT CARRIER GROUP:         none
BOLT:  none
RAIL:  13.5" SMR MK16 with receiver dove-tail
BARREL:  14.5" Geissele Barrel, CHF, Chrome Lined, 1-7 Twist, Black Oxide treated
GAS SYSTEM:  Geissele Length mid-length
GAS BLOCK:  Super Compact Gas Block

 Surefire Closed Tine DLC Nanocoated

note on pics:  one picture shows charging handle, but is not included.

Note:  Ships in a factory box for a complete upper receiver group.  Charlie's has removed the charging handle and BCG.  So, this is similar to the stripped model 08-247ODG, except this is upgraded to include the pinned and welded nano-coated Surefire flash hider.  This offering is more than the factory stripped, but less than the factory complete.  All specs are correct.  All Geissele factory assembled.