Y
Yahkov580_556happy with it
Reviewed on April 11, 2026
anodizing is clean and even
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Diamondback AR-15 223 Rem & 556 NATO 16" 1:8 Barrel, Black Nitride Finish - 556M16M50B8R
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Diamondback
Overview
The Diamondback AR-15 16" barrel is designed for 5.56 NATO and .223 Remington calibers, featuring a medium profile that balances weight and performance. With a mid-length gas system, this barrel ensures reliable cycling while the 1:8 twist rate offers versatility for stabilizing a range of bullet weights. Builders often integrate this barrel into carbine gas system builds, making it a solid choice for those looking to enhance their AR-15 configuration.
Specifications
MPN556M16M50B8R
CoatingNitride
Gas System LengthCarbine
Caliber.223 Wylde
FinishNitride
Thread Pitch1/2x28
Twist Rate1:8
Barrel ProfileM4
Barrel Length16
Diamondback AR-15 223 Rem & 556 NATO 16" 1:8 Barrel, Black Nitride Finish - 556M16M50B8R
Frequently Built With
Based on build data
Wilson Combat Ar-15 Billet Upper Receiver
Upper Receiver
BLEM PSA AR15 Complete Classic Stealth Lower, Black
Lower Receiver
Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging Handle
Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black
Gas Block
Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length
Gas Tube
Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock
Lower ReceiverBuild Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
88.2%
AR-1588.2%
AR-109.1%
AR-92.6%
CaliberBased on real build data showing which calibers builders choose alongside this product.
100%
.223 Remington100%
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
100%
Carbine100%
| Product | Category | Times Built Together |
|---|---|---|
| Wilson Combat Ar-15 Billet Upper Receiver | Upper Receiver | 153 |
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 146 |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 144 |
| Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black | Gas Block | 136 |
| Wmd Guns Ar-15 Gas Tube Nitromet Mid-Length | Gas Tube | 132 |
| Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock | Lower Receiver | 118 |
| Platform | Percentage |
|---|---|
| AR-15 | 88.2% |
| AR-10 | 9.1% |
| AR-9 | 2.6% |
| Caliber | Percentage |
|---|---|
| .223 Remington | 100% |
| Gas System | Percentage |
|---|---|
| Carbine | 100% |
Builds Featuring This Part
See all 5 →Builds in the community that include the Diamondback AR-15 223 Rem & 556 NATO 16" 1:8 Barrel, Black Nitride Finish - 556M16M50B8R
| Build | Parts | Total |
|---|---|---|
 | 12 | $656.83 |
 | 11 | $457.30 |
 | 24 | $902.83 |
 | 16 | $704.60 |
 | 21 | $587.77 |
Customer reviews
5.0out of 5
2 global ratings
Top reviews
P
PatchMeUp373worth it
Reviewed on March 11, 2026Verified Purchase
machining is clean and the threads cut smooth. would buy again
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