Fail Zero AR-15 Complete Bolt Carrier Group 5.56mm, Steel with Full Auto BCG

5.56MM FULL AUTO AR-15

The Fail Zero FZM16401NH bolt carrier group is a high-quality, complete assembly designed for AR-15 rifles chambered in 5.56mm. Crafted from durable steel, this bolt carrier group features a classic finish that ensures reliable performance and corrosion resistance. It includes all essential components such as the bolt, extractor, cam pin, carrier key, and firing pin, providing a ready-to-install upgrade for your firearm. This full auto BCG is compatible with MIL-SPEC M16, M4, and AR-15 uppers, making it a versatile choice for both tactical and recreational shooters. The design emphasizes precision manufacturing and durability, ensuring consistent cycling and dependable operation under various conditions.

Features:

• Bolt & Extractor: Compatible with 5.56/.223 caliber rounds, offering reliable chambering and extraction.

• Bolt Carrier: Complete AR-15 style bolt carrier designed for durability and smooth operation.

• Extractor: Precision-engineered for secure extraction and ejection of spent cartridges.

• Cam Pin: Robust construction for reliable locking and unlocking during firing cycles.

• Carrier Key: Secured with proper staking to ensure stability and longevity.

• Firing Pin: Made from steel, optimized for consistent firing function.

• Material: Steel construction for strength, durability, and corrosion resistance.

• Size & Finish: Designed for 5.56mm caliber with a classic finish that withstands rigorous use.

• Compatibility: Fits MIL-SPEC M16/M4/AR-15 uppers, suitable for various builds and upgrades.