Fail Zero FZ BASIC SEMI KIT BOLT & HAMMER — AR-15 BCG

This complete Bolt Carrier Group (BCG) from Fail Zero includes the bolt and hammer and ships fully assembled for drop-in installation into most mil‑spec AR-15 upper receivers. Critical components are treated with EXO Nickel Boron technology to provide permanent dry lubricity, increased wear resistance, and improved corrosion protection. The unit is intended for use in semi-automatic AR-15 platforms and maintenance or upgrade projects where a fully assembled carrier is required. Built to fit standard mil‑spec dimensions, it integrates with common AR-15 upper receiver assemblies.

Key Specifications

• The product type is a Bolt Carrier Group.
• The model is listed as AR-15 Carrier.
• The finish/coating is specified as EXO Nickel Boron.
• The assembly includes a complete bolt and hammer.
• The item ships fully assembled for drop-in installation.
• Compatibility is described as most mil‑spec AR-15 upper receivers.
• The product is categorized under Bolts & Bolt Carrier Groups.

Engineered for shooters who value durable, low‑friction components, this Fail Zero BCG simplifies maintenance and upgrades by delivering a fully assembled carrier with a hard‑wearing finish. Its EXO Nickel Boron treatment reduces the need for lubrication under many conditions and adds a robust layer of corrosion resistance, making it a practical choice for routine service, component refreshes, or as a dependable replacement carrier in a semi‑automatic AR-15 build.