Maxim Defense SDX 508 300 Blackout 8.5″ SBR Arid

The Maxim Defense SDX 508 is a 300 Blackout short-barreled rifle featuring an 8.5-inch barrel and an integrated suppressor system. This configuration is offered in an Arid finish and has been tested to SOCOM standards across multiple calibers.

Key Features

• 300 Blackout chambering
• 8.5-inch barrel
• Integrated suppressor system
• Arid finish
• SOCOM-table tested across multiple calibers

The SDX 508 is a short-barreled rifle and is subject to NFA regulations. ICB Firearms is a family-owned retailer based in Saint Clair Shores, Michigan, offering knowledgeable service and fast nationwide shipping on eligible items.