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Geissele Super Duty Mod1 8in Upper Receiver Group Up to 13% Off w/ Free Shipping — 2 models

Geissele Super Duty Mod1 8in Upper Receiver Group
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, DDC, 08-553S
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, Black, 08-553B
Geissele Super Duty Mod1 8in Upper Receiver Group
Geissele Super Duty Mod1 8in Upper Receiver Group
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, DDC, 08-553S
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, DDC, 08-553S
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, Black, 08-553B
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, Black, 08-553B
Geissele Super Duty Mod1 8in Upper Receiver Group
1 of 9 images
Geissele Super Duty Mod1 8in Upper Receiver Group
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, DDC, 08-553S
2 of 9 images
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, DDC, 08-553S
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, Black, 08-553B
3 of 9 images
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, Black, 08-553B
Geissele Super Duty Mod1 8in Upper Receiver Group
4 of 9 images
Geissele Super Duty Mod1 8in Upper Receiver Group
Geissele Super Duty Mod1 8in Upper Receiver Group
5 of 9 images
Geissele Super Duty Mod1 8in Upper Receiver Group
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, DDC, 08-553S
6 of 9 images
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, DDC, 08-553S
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, DDC, 08-553S
7 of 9 images
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, DDC, 08-553S
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, Black, 08-553B
8 of 9 images
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, Black, 08-553B
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, Black, 08-553B
9 of 9 images
Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, Black, 08-553B

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Questions & Answers
This comes with buffer spring?

Geissele website for this model number states it comes with spring and H1 buffer.

by Hawkeye, Verified Owner, October 7, 2025
See 1 More Answer
This says it’s 1-8 barrel twist but geisseles websites says it’s 1-7?

I have the ddc it’s 1-8 twist. Although the black one says 1-7 my ddc was labeled 1-8 on the box when I received it.

by todd 606, Verified Owner, December 1, 2025
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review
Outstanding product! by Nathan K., Verified Owner, March 1, 2026
You’re buying the best of the best. This is where your dollar takes you far. Geissele is a tried and true company. You will not be disappointed.
1/1 found this helpful
Most Recent Reviews
geissele upper by sixfive, Verified Owner, April 11, 2026
Really great upper. Solidly built. Really tight tolerances.
Read All 2 Reviews
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ATTENTION! We currently do not ship this product to AK, CA, HI, IL, NY, WA, P.O. Boxes, and U.S. Territories. Please see our policies for more information.

Product Info for Geissele Super Duty Mod1 8in Upper Receiver Group

The Geissele Super Duty Mod1 8in Upper Receiver Group was created in order to be the ideal item for anyone in need of a top quality selection..image

These AR15 Upper Receivers through the skilled product specialists at Geissele are designed by using heavy duty and dependable components, to be able to supply you with a product which is going to be effective for quite some time. Designed using some of the most useful accessible substances and construction, these special AR15 Upper Receivers from the product professionals at Geissele can last an exceptionally lengthy time.

Geissele has been generating high-quality products for a number of years, and the Geissele Super Duty Mod1 8in Upper Receiver Group is their way of revealing exactly how much they are concerned.

At OpticsPlanet, we ensure that it is our obligation to obtain the most suitable product for your preferences, and featuring the Geissele Super Duty Mod1 8in Upper Receiver Group is one thing that we're pleased to offer.

WARNING: California`s Proposition 65

Specifications for Geissele Super Duty Mod1 8in Upper Receiver Group:

Manufacturer: Geissele
Caliber: .300 AAC Blackout
Overall Length: 17.125 in
Barrel Length: 8 in
Gas System Length: Pistol Length
Barrel Twist Rate: 1-7
Firearms Threads Per Inch: 5/8x24
Muzzle Device: HUXWRX Flash Hider-QD 762
Finish: Type 3 Hardcoat Anodize
Fabric/Material: Aluminum & Steel
Handguard Length: 7 in
Bolt Carrier Group Included: MIL-SPEC
Charging Handle Included: MIL-SPEC
Magazine Included: No

Package Contents:

  • Geissele Super Duty Mod1 8in Upper Receiver Group

Geissele Super Duty Mod1 8in Upper Receiver Group Orderable Models

List of Orderable Models

  • Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, Black, 08-553B , MPN: 08-553B , UPC: 810081134323 , Code: 1TO-UFH-ADE13-08-553B
  • Geissele Super Duty Mod1 Upper Receiver Group, Complete, 8in, 300 Blackout, DDC, 08-553S , MPN: 08-553S , UPC: 810081134330 , Code: 1TO-UFH-ADE13-08-553S
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