M16 Full Auto Bolt Complete Bolt Carrier Group Black Nitride Coating Carpenter 158 Steel
Toocraft is an OEM supplier and is know for their high quality Bolts and Carriers. Carrier material is AQ 8620 Steel that has been Black Nitride Coated which is similar to hard chrome in lubricity but far more durable. Carrier keys are properly staked and all components are produced to military specifications. The Carpenter 158 steel bolt is the best material in the business. Ready to run with firing pin and all components. Drop in installation.
- Bolt Shot Peened; MPI
- Bolt Material: Carpenter 158 (C158) Steel
- Bolt Finish: Black Nitride
- Caliber: .223 | 5.56 NATO | 300 Blackout
- Extractor O-ring: Viton; Mil Spec
- Carrier Material: 8620 Steel, Toolcraft Proprietary
- Carrier Finish Black Nitride
- Carrier Design: M16 Full Auto Style
- Gas Key Material: 4130 Steel
- Cam Pin Material: 4140 Steel
- Cam Pin Finish: Black Nitride
- Firing Pin Material: 8740 Steel; Hard Chrome Plated
- Manufacturer: Toolcraft
Carpenter 158 Bolt
Carpenter 158 steel is a high-strength steel alloy that is commonly used in the manufacturing of firearm components, particularly in the bolt of the bolt carrier group (BCG) of the AR-15 and M16 rifles.
Carpenter 158 steel is a proprietary alloy that is specifically formulated to provide excellent strength, toughness, and fatigue resistance, making it an ideal material for use in high-stress applications such as firearms. It has a high carbon content, which contributes to its strength and hardness, and it also contains elements such as chromium, molybdenum, and vanadium to enhance its properties.
Overall, Carpenter 158 steel is a high-quality steel alloy that is widely regarded as one of the best materials for use in firearm components. Its combination of strength, toughness, and machinability make it an ideal choice for components such as bolts, which must withstand high levels of stress and function reliably over long periods of use.
AQ 8620 is a type of low-alloy steel that is commonly used in the manufacturing of firearm components, particularly in the bolt of the bolt carrier group (BCG) of the AR-15 and M16 rifles. This type of steel is alloyed with elements such as nickel, chromium, and molybdenum to enhance its strength, durability, and wear resistance. It is also known for its good weldability and machinability.
About Toolcraft, Inc.
Toolcraft Inc. is a manufacturer of high-quality firearm components, particularly bolt carrier groups (BCGs) for the AR-15 and M16 rifles. The company was founded in 1964 and has since become a leading supplier of precision-machined components for various industries, including aerospace, defense, and medical devices.
One of Toolcraft’s main areas of focus is the production of BCGs for the AR-15 and M16 rifles. These components are crucial to the function of the rifle and undergo high levels of stress during firing, so they must be manufactured to exacting standards to ensure reliable performance. Toolcraft’s BCGs are known for their high quality and consistency, and they are used by many gun enthusiasts, competitive shooters, and law enforcement agencies.
In addition to BCGs, Toolcraft also produces other firearm components such as bolts, firing pins, and extractors. The company uses high-quality materials such as Carpenter 158 steel and AQ 8620 steel in their products, and they employ advanced machining techniques to ensure precision and accuracy.
Overall, Toolcraft is a well-respected manufacturer of high-quality firearm components that are known for their reliability and durability. Their products are used by a wide range of customers, from recreational shooters to law enforcement and military personnel, and they are highly regarded in the firearms industry for their quality and consistency.
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