AR Bolt Carrier Groups & AR-15 BCGs

Our AR bolt carrier groups (BCGs) category features quality AR-15 bolt carrier group assemblies engineered for durability, compatibility, and consistent performance. The bolt carrier group is a critical operating component within the upper receiver assembly, making proper selection essential for reliable function.

We offer AR BCGs in a variety of configurations, including:
• 5.56 NATO bolt carrier groups
• .223 Wylde compatible BCGs
• 300 Blackout bolt carrier groups
• M16 profile bolt carrier groups
• Phosphate finish BCGs
• Nitride-treated BCGs
• Nickel-coated BCGs

Manufactured from durable materials such as Carpenter 158 or 9310 steel bolts and finished with corrosion-resistant coatings, our AR-15 BCGs are built to industry standards. Many models feature tested bolts and properly staked gas keys to ensure dependable performance.

Choosing the Right AR Bolt Carrier Group

When selecting an AR bolt carrier group, consider:
• Caliber compatibility
• Carrier profile
• Bolt material
• Finish type (phosphate, nitride, nickel, etc.)
• Manufacturer specifications

Each product listing includes compatibility information to help ensure proper fitment with standard AR-15 upper receivers.

Quality & Compatibility

We source AR bolt carrier groups from reputable manufacturers recognized for precision machining and consistent quality control. Whether you’re replacing a worn component or selecting a compatible upper receiver assembly part, our selection provides dependable options built to established industry standards.

Browse our collection of AR bolt carrier groups and AR-15 BCGs to find reliable components for your platform.