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M5 308 Winchester Assembled Upper Receiver - M5 (.308) Assem Upper Receiver 16'''' Mid-Length Threaded Blk
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$599.99
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SKU: 430108696
Overview
Built for a .308 Winchester AR-10 pattern setup, this assembled upper is a ready-to-install option for hunters and shooters who want a complete upper without piecing together the major components. It includes an M5 assembled upper receiver, ATLAS R-ONE handguard, 16" .308 CMV barrel with mid-length gas system, plus a low-profile gas block and gas tube. The handguard is designed to keep the profile slim while still leaving room for accessories, making it a practical choice for a field rifle or a general-purpose hunting build. A BCG and charging handle are not included, so those parts must be selected separately.
Why Hunters Choose the Aero Precision
Includes Assembled
M5 upper receiver for a
Atlas R-one
Handguard offers a slim profile
Handguard Design
Balances size and weight considerations
Comes 16-inch
A 16-inch .308 CMV barrel
Includes Low-profile
Gas block and mid-length gas
Key Features
- M5 assembled upper receiver from Aero Precision
- Includes ATLAS R-ONE handguard of choice
- Features Aero's proprietary ATLAS attachment system
- Includes 16-inch .308 CMV barrel with mid-length gas system
- Includes low profile gas block and mid-length gas tube
- Product comes assembled; BCG and charging handle not included
Best Used For
- Hunters building a .308 upper with a slim, attachment-ready handguard setup
- Shooters wanting a complete assembled upper without a BCG or charging handle
- Users who prefer a mid-length gas system and low-profile gas block configuration
- Field and range users needing a compact 16-inch .308 upper receiver assembly
Specifications
| Atlas R One Handguard | Included |
|---|---|
| Barrel Length | 16" |
| Barrel Material | CMV |
| Bcg Included | No |
| Caliber | .308 |
| Charging Handle Included | No |
| Gas System | Mid-Length |
| Handguard Of Choice | Included |
| Low Profile Gas Block | Included |
| M5 Assembled Upper Receiver | Included |
| Mid Length Gas Tube | Included |
| Product Comes Assembled | Yes |
Pros
- Includes an assembled M5 upper receiver for a ready-to-build platform.
- ATLAS R-ONE handguard offers a slim profile with attachment space.
- Handguard design balances size and weight considerations.
- Comes with a 16-inch .308 CMV barrel and mid-length gas system.
- Includes low-profile gas block and mid-length gas tube.
- Complete upper arrives assembled, excluding BCG and charging handle.
Considerations & Trade-offs
- This is a complete upper, but it does not include a BCG or charging handle, so those components must be selected separately.
- The 16" .308 CMV barrel and mid-length gas setup are fixed as listed, which limits flexibility if you are building around a different barrel length or gas system.
- The ATLAS R-ONE handguard is designed with size and weight in mind, so it favors a slim profile over a more substantial front-end feel.
- The handguard offers attachment real estate, but the product details do not specify included accessories or mounting hardware beyond the assembled upper components.
Suggested Comparisons
- AR-10 / .308 complete upper receivers
- Free-float handguards
- .308 barrels
- Upper receiver assemblies
Suggested Accessories
- Rifle scope mount
- Backup iron sights
- Charging handle
- Bolt carrier group
Frequently Asked Questions
What comes included with this assembled upper receiver?
It includes the M5 Assembled Upper Receiver, an ATLAS R-ONE Handguard, a 16" .308 CMV barrel with mid-length gas system, a low profile gas block, and a mid-length gas tube. It comes assembled.
Does this complete upper include a bolt carrier group or charging handle?
No. The source data states that this complete upper does not include a BCG or charging handle.
What caliber is this upper built for?
The product title and included barrel specification identify it as a .308 Winchester / .308 upper.
What handguard system does it use?
It uses Aero Precision's ATLAS R-ONE handguard with the proprietary ATLAS attachment system.
Is the handguard described as bulky or streamlined?
The description says the R-ONE handguard is designed with size and weight in mind and maintains a slim profile while still providing attachment space.