Comparing the 5 Inch 300 Blackout Upper and the 8.6 Blackout Upper PSA 

Moriartiarmaments031 Dec, 2025Business

The 5-inch .300 Blackout upper has gained popularity among enthusiasts who prioritize mobility and control in close-quarters environments. Its shorter barrel makes it highly maneuverable, making it ideal for personal defense setups or tactical use. Despite the compact size, the .300 Blackout round performs efficiently in short barrels, especially when used with subsonic ammunition. This makes the platform an attractive choice for those looking to build a suppressed rifle that maintains reliability and adequate stopping power.