The AR-40 10.5" Slick Side Pistol Upper with Flash Can, Charging Handle (CH), and Bolt Carrier Group (BCG) in .40 S&W is the perfect upper assembly for your MA-9 Glock Style lower receiver. This upper is built on a slick side billet upper receiver, providing a sleek, clean look without the forward assist or ejection port cover.
Featuring a 10.5" government profile barrel crafted from 4150 CMV steel and finished in black nitride, the upper delivers enhanced durability and performance. The barrel boasts a 1:16 twist rate and is chambered for .40 S&W match-grade ammunition, perfect for tactical builds and home defense.
Equipped with a slim flash can muzzle device, this upper minimizes muzzle flash for better control, especially during rapid fire. The 12" M-LOK handguard ensures optimal space for attaching accessories while keeping the build lightweight and maneuverable.
This upper also includes a .40 S&W BCG, precision-milled for use with Glock-style lowers. The upper assembly comes fully assembled and tested, ready for installation on your Glock-style lower receiver.
Key Features:
Barrel: 10.5" government profile barrel, .40 S&W, made from 4150 CMV steel with a black nitride finish for superior durability and performance. The 1:16 twist rate ensures reliable stabilization and accuracy for .40 S&W ammunition.
Slick Side Upper Receiver: Manufactured from 7075-T6 billet aluminum and finished with black hardcoat anodized per MIL 8625 Type 3 Class 2. The receiver is compatible with AR-15, AR-9, and AR-45 mil-spec components, providing excellent versatility and strength.
Gas System: The blowback gas system is optimized for .40 S&W ammunition, providing smooth cycling and reliable operation in your AR-40 build.
Muzzle Device: Equipped with a slim flash can, this muzzle device helps to reduce muzzle flash and improve overall control during rapid firing, making it ideal for both range use and self-defense.
Handguard: A 12" free-floating M-LOK rail ensures a lightweight, slim, and customizable build. The handguard is made from aircraft-quality aluminum and also hardcoat anodized for added wear resistance.
Bolt Carrier Group (BCG): The .40 S&W BCG is precision-milled from 8620 steel with a mag phosphate finish and designed for Glock-style lowers (or AR-15 lowers with a magazine adapter). The M-16 cut ensures compatibility with a variety of firearm builds.
Charging Handle: The upper includes a standard AR-15 charging handle, ensuring smooth cycling and ease of use.
Note: This upper does not include the lower receiver, sights, or magazines, and is ideal for pairing with a Glock-style lower receiver.
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