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ATI 5.56/.223 Mil-Sport AR-15 Pistol Upper Receiver Less BCG & Chg. Handle 7.5" Barrel
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$269.99
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SKU: WX2*0719022
Overview
Built for a compact AR-15 pistol setup, this upper receiver gives shooters a straightforward starting point for a 5.56 NATO/.223 Remington build. The 7.5" nitrided barrel and 1:7 twist rate are paired with a free-floating M-LOK handguard, while the forward assist and dust cover add familiar controls for a practical range or build project. It is offered without a BCG or charging handle, so it suits users who want to complete the upper with their preferred components. For hunters and outdoorsmen assembling a compact firearm configuration, it provides a value-focused foundation without unnecessary extras.
Why Hunters Choose the Ati
7.5-inch Nitrided
A value-focused setup
1:7 Twist
Rate is suited for stabilizing
Chambered 5.56
NATO and .223 Remington compatibility
Free-floating M-lok
Handguard provides accessory mounting options
Includes Forward
Assist and dust cover for
Key Features
- 7.5" nitrided barrel
- Chambered for 5.56 NATO/.223 Remington
- 1:7" twist rate for heavier projectiles
- Free-floating M-LOK handguard
- Forward assist and dust cover included
- Carbine-length gas system
- BCG and charging handle not included
Best Used For
- AR-15 pistol builders wanting a budget-conscious upper for a 5.56 NATO/.223 Remington setup
- Shooters planning a compact build with a 7.5-inch barrel and carbine-length gas system
- Users who prefer a free-floating M-LOK handguard for accessory mounting on a pistol build
- Builders needing a complete upper with forward assist and dust cover, minus BCG and charging handle
Specifications
| Barrel Finish | Nitride |
|---|---|
| Barrel Length | 7.5" |
| Bcg Included | No |
| Chambering | 5.56 NATO/.223 Remington |
| Charging Handle Included | No |
| Dust Cover | Included |
| Forward Assist | Included |
| Gas System | Carbine-length |
| Handguard | Free-floating M-LOK handguard |
| Twist Rate | 1:7" |
Pros
- 7.5-inch nitrided barrel supports a compact pistol build with a value-focused setup.
- 1:7 twist rate is suited for stabilizing heavier projectiles.
- Chambered for 5.56 NATO and .223 Remington compatibility.
- Free-floating M-LOK handguard provides accessory mounting options.
- Includes forward assist and dust cover for added upper receiver functionality.
- BCG and charging handle are not included, allowing build customization.
Considerations & Trade-offs
- BCG and charging handle are not included, so this upper is intended for builders who already have those components or plan to source them separately.
- The 7.5" barrel and carbine-length gas system make this a compact pistol upper, which may limit it to close-range or specialized use rather than a general-purpose setup.
- Chambering is listed for 5.56 NATO/.223 Remington, so ammunition choice should match the intended platform and build requirements.
- The free-floating M-LOK handguard adds modularity, but it also means accessories must be selected to fit that interface.
Suggested Comparisons
- AR-15 pistol upper receivers
- Complete AR-15 pistol builds
- 5.56 NATO/.223 Remington uppers
- Free-floating M-LOK handguard uppers
Suggested Accessories
- AR-15 BCG
- Charging handle
- Pistol brace
- M-LOK accessories
Frequently Asked Questions
Does this upper include a bolt carrier group and charging handle?
No. The product notes that the BCG and charging handle are not included.
What caliber is this upper chambered for?
It is chambered for 5.56 NATO/.223 Remington.
What barrel length and twist rate are listed?
The listed barrel is 7.5 inches with a 1:7" twist rate.
What features are included on the upper receiver assembly?
The description lists a free-floating M-LOK handguard, forward assist, dust cover, and a carbine-length gas system.
Is there any finish information provided for the barrel?
Yes. The barrel is described as nitrided, and the short description also mentions a nitride finish.