Try this ultra light 16″ Ar15 upper. Weighing in at 2 pounds without the BCG, this is one of the lightest uppers we’ve seen. We’re also including a Chrome Microbest BCG and an extended latch charging handle.
Looking for an ultralight yet high-performance AR-15 upper receiver assembly? This 2-pound sport upper is custom-built for speed, reliability, and precision. Weighing just 2 lb without the BCG, it’s perfect for fast-paced competition, hunting, or lightweight builds. It comes complete with a top-tier Microbest Chrome Bolt Carrier Group (BCG) and an extended latch charging handle—your go-to combo for ultimate performance.
Features & Specs
- Barrel: 16″ 5.56 NATO, 1:7 twist, pencil/ultralight profile, carbine-length gas system
- Receiver: 7075-T6 sport receiver—no forward assist or dust cover to cut weight
- Handguard: Ultralight M-LOK free-float rail, perfect for mounting optics and accessories
- Muzzle: 1/2×28 threaded; includes your choice of thread protector or A2 flash hider at no extra fee
Microbest Chrome BCG Included
This package features the full-spec Microbest M16 Full Chrome HPT/MPI Bolt Carrier Group, known for military-grade performance and tested reliability:
- Mil-Spec 8620 carrier with full hard chrome finish — durable and corrosion-resistant
- Carpenter 158 bolt (C158), shot peened, high pressure tested (HPT), and magnetic particle inspected (MPI)
- Mil-Spec phosphated extractor (4140 steel) with Sprinco extractor & ejector springs and Sprinco insert — improved extraction grip
- Mil-Spec gas key (4130 steel) with OCKS screws, properly staked — full chrome finish
- Chrome cam pin, firing pin, and retaining pin (4140 steel)
- Total weight approximately 11.6 oz
Why Choose This AR-15 Upper?
- Featherweight performance: At only 2 lb (without BCG), it’s one of the lightest uppers you’ll find—ideal for fast handling and low-weight builds.
- Proven reliability: Backed by Microbest’s mil-spec testing and quality, featuring the best steels and HPT/MPI inspection for safety and durability.
- Easy maintenance: Chrome BCG enhances smooth cycling, fouling resistance, and easy cleaning — especially valuable under rapid-fire conditions.
- Complete setup: Ready to shoot. Includes BCG and charging handle—just pair with your lower receiver and go.
Pair with More AR-15 Parts
Need compatible parts to finish your build? Browse our other categories:
✅ Order your 2 lb Ultralight Sport AR-15 Upper today from Midstate Firearms—your trusted partner for lightweight precision parts and mill-spec components.
Don’t select any options to the right if you want it to come as pictured for the 349 price. Any changes or selections will change the price.
2lb Ultralight Sport Ar15 Upper – It is light and it has cycled properly at the range so far. The charging handle did not make it in the order but as soon as they found out about it they sent me one asap. Thank you!
sound of freedom – This was a great set up. I loved being able to customize the set up. Only issue I had was my own fault as a newb to building these. I used a heavy barrel in a slim hand guard. It makes adding attachments tough with clearances. Hoping someday to also get an AR10 from here.