Description
Overview
The Geissele Super Duty MOD-1 Complete Upper Receiver 12.5″ with HUXWRX Flash Hider QD is a robust AR-15 upper built for dependable performance and rugged use. It centers around a 12.5″ barrel and a free float rail system that supports accessory mounting with minimal added weight. The HUXWRX flash hider with quick detach capability gives you effective flash control while remaining adaptable to suppressor setups. Available in Black and Flat Dark Earth, this complete upper arrives assembled and ready to pair with a compatible lower.
What It Does
This upper receiver gives your rifle a balanced configuration that blends quick handling with dependable function. The 12.5″ barrel promotes crisp transitions between targets and effective performance with common 5.56 ammunition. The free float rail system offers space for optics, lights, lasers, and back up sights while keeping the profile slim. A premium bolt carrier group and charging handle are included for reliable cycling and consistent performance from the range to tactical use. The HUXWRX flash hider with quick detach capability lets you manage muzzle flash without committing to permanent accessories.
Features
- 12.5″ barrel tuned for agile performance.
- Free float rail system with modular attachment points.
- HUXWRX flash hider with quick detach capability.
- Premium bolt carrier group included for dependable operation.
- Ambidextrous charging handle for versatile manipulation.
- Carbine length gas system tuned for consistent cycling.
- Available in both Black and Flat Dark Earth finishes.
Specs
- Chambered in 5.56 NATO for broad ammunition compatibility.
- 12.5″ barrel with tuned carbine length gas system.
- Free float rail for generous continuous accessory space.
- Included quick detach flash hider for modular muzzle options.
- Complete with bolt carrier group and charging handle.
FAQ
Will this fit my AR-15 lower?
Yes. It’s designed to mate with standard AR-15 lowers using typical barrel extension and pin spacing.
Is this a complete upper?
Yes. It arrives fully assembled with all major components installed and ready to mount.
What caliber does it use?
It is chambered in 5.56 NATO, giving you access to a wide range of common ammunition.
Can I mount optics or accessories?
Yes. The free float rail provides generous space for optics, lights, lasers, and other gear.
Does it cycle reliably?
Yes. The tuned gas system and premium components support smooth cycling and consistent function.
What makes the flash hider special?
The HUXWRX flash hider includes a quick detach capability so you can manage muzzle flash while keeping flexibility for suppressor setups.
