DEFCON4-SD 6.75″ Ported Barrel – Precision Engineering for the AR9 Platform

The DEFCON4-SD 6.75″ ported barrel is engineered exclusively for the Ronin Arms AR9 platform, delivering exceptional suppression, accuracy, and reliability. Designed to work specifically with Ronin Arms suppressors, this barrel ensures optimal performance, proper gas flow, and a seamless suppressor fit.

⚠ Important Compatibility Notice: The porting is precisely tuned for Ronin Arms suppressors and must be paired correctly. Full-size and K suppressors are not interchangeable. Using an incorrect suppressor will result in seating issues and performance failures.

Crafted from high-quality materials and precision-machined for a perfect suppressor fit, the DEFCON4-SD barrel enhances shooting stability, gas regulation, and overall suppressed performance.

Key Features:

✔ 6.75″ precision-machined, ported barrel for superior suppression
✔ Optimized for Ronin Arms suppressors—ensuring perfect seating and gas flow
✔ Exclusive to the AR9 system—not compatible with other platforms
✔ Durable construction for high-round count reliability

Safety & Usage Guidelines:

• Suppressor Required: This barrel is designed to be used with a Ronin Arms suppressor. Do not fire without a suppressor attached.
• Correct Suppressor Pairing Required: Full-size and K suppressors are NOT interchangeable. Use only the appropriate suppressor.
• Legal Compliance: Ensure compliance with all federal, state, and local regulations regarding suppressor use.

Upgrade your AR9 with the DEFCON4-SD 6.75″ ported barrel—built for elite suppressed performance and precision craftsmanship.

🔥 We love to see and hear what you think! Tag us in your videos and let us know how your DEFCON4-SD barrel performs. Your feedback helps us continue pushing the boundaries of innovation!