AR-9 9mm 8.3" LRBHO Slick Side Tactical Upper Half with BCG and Charging Handle – Blowback

AR-9 8.3" Upper: Specs

Upgrade your AR-9 build with this 8.3" LRBHO Slick Side Tactical Upper featuring a match-grade 9MM barrel, blowback gas system, and last round bolt hold open (LRBHO) functionality. This upper assembly is perfect for those looking for reliable performance, tactical precision, and compatibility with Glock-style or AR-15 lower receivers.

Key Features:

• Barrel: The 8.3" barrel is made from 4150 Chrome Moly Vanadium steel, ensuring strength and durability. The barrel is finished with Black Nitride for corrosion resistance and smoother cycling. With a 1:10 twist rate, this barrel is optimized for 9MM ammunition, providing accuracy and consistency. It is threaded with 1/2x36 muzzle brake threads and topped with an A2 flash hider.

• LRBHO Slick Side Upper Receiver: Built from 7075-T6 billet aluminum, the slick side upper receiver is hard-coat anodized in black to MIL-8625 Type 3 Class 2 standards. The Last Round Bolt Hold Open (LRBHO) feature ensures the bolt reliably locks open when the magazine is empty. It works seamlessly with AR-9 and AR-45 Billet Lower Receivers, providing enhanced functionality and convenience.

• Gas System: The blowback gas system ensures consistent cycling and reliability. It’s designed for the high-powered 9MM round and ensures smooth operation during shooting.

• Handguard: The 7" M-Lok free-floating handguard is built from aircraft-quality aluminum and anodized for maximum durability. The slim profile ensures a lightweight setup while maintaining rigidity and strength for accessories.

• Bolt Carrier Group (BCG): The included 9MM Ramped BCG is precision-machined from US-made 8620 steel with a mag phosphate finish. This BCG is compatible with both Glock-style and traditional AR-15 lower receivers, giving you flexibility in your build. It features an M-16 cut for use with transferable full-auto MGs, dealer post-sample MGs, or other legal machine guns (ALL BATFE RULES APPLY).

• Charging Handle: The standard AR-15 charging handle is included with this upper assembly, making it a ready-to-install solution for your build.

• Complete Your AR-9 Pistol: This upper assembly comes fully assembled and tested. You can save money by selecting additional parts and accessories to customize your build just the way you want it.

Why Choose the AR-9 8.3" LRBHO Slick Side Tactical Upper?:

• LRBHO Feature: The Last Round Bolt Hold Open feature provides improved functionality, ensuring that the bolt locks open when the magazine is empty. This is crucial for enhanced reliability and smoother operation.

• Precision and Accuracy: The match-grade 8.3" barrel offers excellent accuracy and consistent performance, ideal for tactical shooting or home defense.

• Compatible and Versatile: Compatible with Glock-style and AR-15 lower receivers, this upper provides flexibility for different setups.

• Durability and Quality: With high-quality components such as 7075-T6 billet aluminum, Black Nitride finish, and a free-floating handguard, this upper is built to withstand heavy use while maintaining performance.

Note: The images shown may not be an exact representation of the product. Additional accessories and parts are available to complete your AR-9 pistol build. 

FAQ

What lower does it fit?

A dedicated pistol-caliber AR lower that takes Glock-style 9mm magazines. A standard AR-15 lower with 5.56 magazines will not feed it.

How does it operate?

It is a direct blowback pistol-caliber design with no gas tube or gas block, so a heavy PCC buffer is used for reliable cycling.

Does it have last round bolt hold open?

Yes. It has LRBHO, so the bolt locks back after the last round when used with an LRBHO-compatible lower.

Is a lower receiver included?

No. This is an upper assembly only; the lower receiver and magazine are sold separately.

Related: AR-9 upper assemblies · pistol caliber carbines

Images may not be an exact representation of the product.