Maxim Defense 9mm Roller Delayed System Carbine Buffer System

Maxim Defense’s Roller Delayed Buffer (RDB) System transforms your 9mm AR-pattern firearm into a roller-delayed blowback system, reducing felt recoil and boosting reliability. By allowing gas pressure to stabilize before extraction, it ensures smoother operation while virtually eliminating friction common in standard buffer systems.

Note: The RDB System is designed specifically for 9mm AR platforms and is not compatible with other calibers. This system is not rated for full-auto use.

Product Details

• Platform: 9mm AR-pattern firearms only
• System Type: Roller Delayed Blowback (RDB)
• Caliber Compatibility: 9mm only
• Full Auto Rated: No

Product Features

• Reduces felt recoil for improved control
• Increases reliability during cycling
• Minimizes friction for smoother performance
• Allows gas pressure stabilization before extraction
• Enhances overall shooting experience

Installation Notes

• 9mm bolt assembly must have an open channel for guide rod operation
• Most 9mm bolts require removal of the pinned-in central mass
• Central mass must be removable for compatibility
• BCG must retain full length after central mass removal
• Proper setup is required to ensure reliable function