Daniel Defense Buffer Spring is a replacement carbine Mil-Spec action spring for standard AR-15 carbine buffer systems. It’s designed to restore reliable cycling performance when your existing spring has worn or been damaged.

Key features

• Replacement carbine Mil-Spec action spring for standard AR-15 carbine buffer systems
• Steel spring construction for consistent load and cycling durability
• A practical part for function-focused maintenance and reliability

Keep your carbine running as intended with this Daniel Defense replacement buffer spring.