The Sons of Liberty Gun Works OCKS Bolt Carrier Group is built to be the dependable core of your AR-15. Using a Carpenter 158 bolt that is shot peened, high pressure tested, and magnetic particle inspected, this BCG is designed for long-term durability and consistent performance. The full-auto profile 8620 steel carrier is paired with Sons of Liberty’s Optimized Carrier Key Screws system to keep the gas key secure under hard use, all protected by a black phosphate finish.

This bolt carrier group is compatible with 5.56 NATO, .300 Blackout, 6mm MAX, and .350 Legend, making it a versatile choice for a wide range of AR-15 builds. Whether you are setting up a dedicated training rifle, a general-purpose carbine, or a hunting upper, this BCG is engineered to deliver reliable cycling and smooth operation. It reflects Sons of Liberty Gun Works’ focus on quality components and attention to detail.

Key Features:

• Manufacturer: Sons of Liberty Gun Works
• Model: OCKS Bolt Carrier Group
• Caliber: 5.56 NATO / .300 Blackout / 6mm MAX / .350 Legend
• Product Type: Bolt Carrier Group
• Profile: Full-Auto
• Material: Carpenter 158 Bolt / 8620 Carrier
• Finish: Black Phosphate
• Testing: Shot Peened, High Pressure Tested, Magnetic Particle Inspected
• Special Features: Optimized Carrier Key Screws System