Give your semi-automatic AR-15 a dependable parts refresh with the FailZero BASIC SEMI KIT BOLT & HAMMER. Pairing a durable bolt with a precision-machined hammer, this ready-to-run kit is designed for smooth cycling and consistent function on compatible 5.56 NATO and .223 Rem platforms.
FailZero’s EXO Nickel Boron coating brings low-friction performance to key components while helping resist corrosion and carbon buildup. The smooth surface also makes routine cleanup easier, making this kit a practical choice for builders and shooters seeking long-lasting performance with straightforward maintenance.
- Designed for semi-automatic AR-15 rifles chambered in 5.56 NATO, .223 Rem, and compatible calibers.
- Includes a bolt assembly and precision-machined hammer for a convenient component upgrade.
- Bolt made from 9310 steel for strength and durability through repeated firing cycles.
- Bolt is magnetic particle inspected (MPI) and shot-peened.
- Heat-treated hammer supports wear resistance and consistent trigger function.
- FailZero EXO Nickel Boron coating is applied to the bolt and hammer.
- Low-friction surface helps reduce carbon buildup and supports easier cleaning.
- Corrosion-resistant finish helps protect components during regular use.
- Drop-in-ready design requires no fitting or gunsmithing, according to the manufacturer.
- Suitable for new builds or replacing compatible parts in an existing rifle.
Choose the FailZero BASIC SEMI KIT BOLT & HAMMER for quality materials, a protective coating, and a convenient path to refreshing a compatible AR-15. Add this reliable bolt-and-hammer combination to your build and enjoy smooth operation with maintenance-friendly components.
