Angstadt Arms AR-15 Bolt Carrier Assembly .40 S&W

Angstadt Arms AR-15 Bolt Carrier Assembly in .40 S&W

This is a purpose-built bolt carrier assembly designed for shooters who want to chamber their AR-15 platform rifle in the proven .40 S&W cartridge. It represents a practical solution for those seeking to leverage existing magazine ecosystems and ammunition availability.

Construction and Finish

Machined from 8620 alloy steel with a QPQ black nitride finish, this carrier delivers the durability and corrosion resistance you expect from a quality firearm component. The nitride process hardens the steel surface while maintaining dimensional accuracy—a hallmark of precision manufacturing.

Compatibility and Features

• Works with standard GLOCK 40 S&W magazines, simplifying logistics and cost
• Compatible with your existing AR-15 hammer and trigger group
• Removable weight system accommodates Law Tactical folding stock adapters
• Designed for reliable function in the AR-15 platform

Practical Considerations

The .40 S&W conversion offers an interesting alternative for AR-15 shooters. You gain access to a mature, widely-available cartridge while maintaining the ergonomics and modularity of the AR platform. The removable weight feature demonstrates thoughtful engineering for those who prioritize compact storage or transport.

This is a component for the discerning shooter who values precision manufacturing and practical versatility.