CMMG presents the AR15 Buffer Tube Castle Nut, a testament to their engineering excellence and attention to detail. Designed for AR-15 rifles, this matte black castle nut ensures secure attachment of buffer tubes, enhancing the rifle's performance and reliability. Ideal for range enthusiasts and competitive shooters, this accessory is a must-have for those seeking precision and durability. CMMG's reputation for innovation and quality in AR technologies is unmatched.

Key Features:
- Manufacturer: CMMG
- Model: Receiver Extension Nut
- Product Type: Part
- Material: Matte Black
- Unique Features: Fits AR-15, Secure Attachment