Maxim Defense 9mm Roller Delayed Systems For AR Platform

Maxim Defense’s Roller Delayed Buffer (RDB) System is designed exclusively for 9mm AR-pattern platforms, transforming your firearm into a roller-delayed blowback system. This innovative design reduces felt recoil, improves reliability, and delivers smoother operation by allowing gas pressure to stabilize before extraction. It also minimizes friction commonly found in standard buffer systems for enhanced overall performance.

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 Compatibility: 9mm AR-pattern firearms only
• System Type: Roller Delayed Blowback (RDB)
• Not compatible with other calibers
• Not rated for full-auto applications

Product Features

• Transforms standard blowback into roller-delayed operation
• Reduces felt recoil for improved shooting comfort
• Enhances reliability during cycling
• Allows gas pressure to stabilize before extraction
• Minimizes internal friction for smoother performance
• Optimized specifically for 9mm AR platforms

Installation Notes

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