Aero Precision's Threaded Receiver Roll Pin for AR-15 M4E1/M5 Stainless Steel is engineered with precision and durability. This roll pin is crafted from high-grade stainless steel, featuring a 6-32 thread pitch and designed for seamless installation using a 1/16" hex key wrench. Ideal for use in the bolt catch of M5 lower receivers and the forward assist of upper receivers, it offers exceptional resistance to corrosion and wear, ensuring long-lasting functionality.

Perfect for range time, competition, or training, this roll pin is included with Aero's M4E1/M5E1 Enhanced Uppers, M4E1 Threaded Uppers, M5 Upper Receiver, and M5 Lower Receiver. Aero Precision is renowned for its innovation and quality in firearm components.

Key Features:
- Manufacturer: Aero Precision
- Model: AR-15 M4E1/M5
- Product Type: Threaded Receiver Roll Pin
- Material: Stainless Steel
- Unique Features: 6-32 thread pitch, 1/16" hex socket profile
- What's In The Box: Roll Pin