The Toolcraft Left-Handed Nickel Boron Bolt Carrier Group is a premium, full-auto rated BCG designed specifically for left-side ejecting AR-15 uppers in 5.56 NATO/.223 Remington. Featuring a durable Nickel Boron finish for ultra-smooth operation and easy cleaning, MPI-tested bolt for strength, and a clean non-logo'd design, this BCG is ideal for left-handed builds demanding reliability and performance.
Benefits of the Toolcraft Left-Hand BCG
This BCG is built for left-ejecting AR-15 owners who want high-end quality without branding:
- Left-Hand Specific: Optimized for left-side ejection uppers.
- Nickel Boron (NiB) Finish: Low-friction coating reduces wear, speeds cycling, and makes cleaning effortless.
- MPI Full-Auto Bolt: Magnetic Particle Inspected bolt rated for full-auto fire — extreme durability and reliability.
- Non-Logoed Design: Clean, unbranded look perfect for custom or understated builds.
- Reliable & Drop-In Ready: Fully assembled with staked gas key — ready for immediate installation.
- Made in the USA: Precision-machined by Toolcraft, a trusted OEM for premium AR components.
Specs
Toolcraft Left-Hand Nickel Boron Bolt Carrier Group, 5.56 NATO/.223 Remington. MPI (Magnetic Particle Inspected) full-auto rated bolt, Nickel Boron coated carrier, staked gas key with Grade 8 fasteners. Fits left-side ejecting AR-15 uppers. Weight: approximately 11.5 oz. Made in the USA.
Toolcraft products are distinguished in the following ways:
- Trusted OEM manufacturer of AR components for many top brands.
- Precision machining and premium finishes for smooth, reliable operation.
- Made in the USA with rigorous testing and quality control.
- Proven in duty, competition, and high-round-count recreational use.
Like all Toolcraft BCGs, the Left-Hand Nickel Boron version is engineered for longevity and flawless performance. The Nickel Boron finish reduces fouling and wear, while the left-hand design ensures perfect compatibility with your setup. Your satisfaction is backed by Toolcraft's reputation for excellence.
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