Upgrade your AR-9 pistol build with the AR-9 9MM 4.5" Slick Side Micro Pistol Upper. This complete upper assembly is designed to deliver reliable performance for shooters seeking a compact, high-performance 9mm AR upper. It features a non-LRBHO (Last Round Bolt Hold Open) configuration, making it a perfect choice for users who prioritize simplicity and compactness.
Barrel: The 4.5" 9mm barrel is crafted from 4150 chrome moly vanadium steel and finished with a durable black nitride coating for superior corrosion resistance. With a 1:10 twist rate and 1/2-36 muzzle brake threads, this barrel is ready to accept a Slip Over Shroud muzzle device, optimizing muzzle control and reducing flash.
Receiver: The Slick Side Upper Receiver is made from 7075-T6 aircraft billet aluminum, ensuring strength and weight savings. The receiver is finished with a black hardcoat anodized coating per MIL-8625 Type 3 Class 2, providing exceptional durability and wear resistance. The non-LRBHO design enhances simplicity and functionality for users who do not need the LRBHO feature.
Gas System: This upper utilizes a blowback gas system, making it compatible with a wide variety of 9mm loads while offering consistent cycling.
Handguard: The 4" slim profile M-LOK rail provides an ideal platform for attaching accessories without adding unnecessary weight. It is made from aircraft-grade aluminum and features a black hardcoat anodized finish for long-lasting performance.
Bolt Carrier Group (BCG): The AR-9 hybrid BCG is made from US-made 8620 steel with a mag phosphate finish, precision milled for use with Glock-style or AR-15 lowers (adjustments required for Colt lowers). The M-16 cut BCG is ready for full-auto applications (with proper licensing and adherence to BATFE rules).
Charging Handle: The upper includes a mil-spec AR-15 charging handle, ensuring smooth and reliable operation during your shooting sessions.
This complete AR-9 upper comes fully assembled and is ready to install into your compatible lower receiver. Ideal for enthusiasts looking to build a compact, high-performance 9mm AR pistol.
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Tags: ar-9, 9mm, 4.5 moriarti, 4.5 4.5", slick, side, micro, pistol, upper, shroud, bcg, charging, handle, non-lrbho