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Radical Firearms
Overview
The Radical Firearms .450 Bushmaster AR-15 Barrel is a 20-inch heavy profile barrel designed specifically for the .450 Bushmaster cartridge. With a rifle-length gas system, it ensures reliable cycling and optimal performance, while the 1:16 twist rate stabilizes heavier projectiles effectively. This barrel is commonly found in builds that prioritize the .450 Bushmaster caliber, making it a solid choice for those looking to maximize power and accuracy in their AR-15 platform.
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Based on build data

Radical Firearms 5.56 Barreled Ar-15 Upper - 16" - Primary Arms Exclusive
Upper Receiver
Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging Handle
Yankee Hill Machine Complete Ar-15 Lower Receiver - M4 Stock
Lower Receiver
Daniel Defense Mfr Xl Free Float Ar-15 Handguard - M-Lok - 9"
Handguard
Diamondback Firearms 5.56 Ar-15 Bolt Carrier Group - Nitride
Bolt Carrier Group
BLEM PSA AR15 Complete Classic Stealth Lower, Black
Lower ReceiverAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Radical Firearms 5.56 Barreled Ar-15 Upper - 16" - Primary Arms Exclusive | Upper Receiver | 11 |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 10 |
| Yankee Hill Machine Complete Ar-15 Lower Receiver - M4 Stock | Lower Receiver | 8 |
| Daniel Defense Mfr Xl Free Float Ar-15 Handguard - M-Lok - 9" | Handguard | 6 |
| Diamondback Firearms 5.56 Ar-15 Bolt Carrier Group - Nitride | Bolt Carrier Group | 5 |
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 5 |
| Platform | Percentage |
|---|---|
| AR-15 | 96.4% |
| AR-10 | 3.6% |
| Caliber | Percentage |
|---|---|
| .450 Bushmaster | 100% |
| Gas System | Percentage |
|---|---|
| Rifle | 100% |
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