AR-40 4" Slick Side Pistol Upper | .40 S&W | Flash Can, BCG & Charging Handle, Non-LRBHO

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AR-40 4" Slick Side Pistol Upper | .40 S&W | Flash Can, BCG & Charging Handle, Non-LRBHO

The AR-40 4" Slick Side Pistol Upper is a high-performance upper assembly chambered in .40 S&W, designed for builders looking to complete their custom AR-40 pistol build. This slick side billet upper receiver is a perfect match for Glock-style lowers, offering a sleek and reliable platform for your AR-40 project. With a heavy-duty 4" match-grade barrel and blowback gas system, this upper delivers superior performance and accuracy, ideal for both recreational shooters and serious marksmen alike.

Key Features:

• .40 S&W Match Grade Barrel: The 4" barrel is crafted from 4150 chrome moly vanadium steel with a black nitride finish, providing durability and resistance to wear and corrosion. The 1:16 twist rate ensures smooth stabilization of your rounds for improved accuracy. 5/8x24 TPI.

• Slick Side Billet Upper Receiver: Made from 7075-T6 aircraft-grade billet aluminum, this upper features a sleek, forward-assist-free design and is hard coat anodized to MIL-A-8625, Type 3, Class 2 specifications. This receiver is compatible with all standard AR-15, AR-9, and AR-45 mil-spec components.

• Blowback Gas System: Designed for blowback operation, this upper is optimized for use with .40 S&W ammunition, providing a smooth cycling action without the need for traditional gas impingement systems.

• Slim Flash Can Compensator: The micro flash can compensator effectively reduces muzzle flash while enhancing recoil control, ensuring a more stable shooting experience in various lighting conditions.

• M-LOK Handguard: The 4" free-floating M-LOK rail handguard is made from lightweight aircraft-grade aluminum and provides a solid platform for attaching accessories like lights, lasers, or grips, allowing for a fully customized setup.

• BCG (Bolt Carrier Group): The kit includes a .40 S&W/10mm BCG made from durable 8620 steel with a mag phosphate finish, ensuring reliable cycling and long-lasting performance. This BCG is precision-milled to be compatible with Glock-style lower receivers and features an M-16 cut for superior operation.

• Charging Handle Included: A mil-spec AR-15 charging handle is included for smooth and efficient cycling during operation.

Customize Your Build: This upper assembly comes unassembled, so you can personalize your AR-40 pistol to your exact specifications. Please note that the lower receiver, sights, and magazine are not included. The AR-40 4" Slick Side Pistol Upper is designed to pair seamlessly with Glock-style lowers for a fully compatible build.

Perfect for Enthusiasts: Whether you’re a seasoned AR builder or a first-time gun enthusiast, the AR-40 4" Slick Side Pistol Upper provides a solid foundation for your next AR-40 pistol project. Take advantage of our additional customization options to tailor this upper to your shooting style and preferences.

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