Maxim Defense Pdx Upper 300blk 5.5" Rifle

The Maxim Defense Pdx Upper 300blk 5.5" Rifle is designed for operators who need the ballistic advantages of the .300 Blackout cartridge in a compact form factor. This upper receiver group is ideal for close-quarters battle (CQB) and executive protection details, providing a tactical advantage in confined spaces or vehicle-borne environments.

Featuring a 5.5-inch barrel, the Maxim Pdx Upper is optimized for reliable cycling and accuracy, even with its shortened profile. The .300 Blackout chambering allows for efficient powder burn in short barrels, maximizing the energy potential of both supersonic and subsonic loads. The durable black finish ensures a non-reflective surface suitable for duty use.

This upper receiver is compatible with standard AR-15 pattern lowers, making it a versatile option for enthusiasts and professionals looking to upgrade their existing platforms. Its compact design allows for easy transport in discreet carry bags, making it suitable for low-visibility operations.