METHOD QBK UPPER RECEIVER GROUP: 12.1 STANDARD, 11.5 MIDWEST COMBAT RAIL, SUPERLATIVE ARMS ADJUSTABLE GAS

QBKs are nearly-complete upper receiver groups designed to shortcut the effort it takes to get you to your dream build. We handle the more tedious portions of assembly.

This QBK includes the upper receiver with a Method Ordnance Standard 12.1" barrel, Superlative Arms adjustable gas system, and Midwest Industries 11.5" Combat Rail pre-installed. This QBK is built with a mil-spec upper receiver with forward assist and ejection port installed.

Simply add a compatible bolt carrier group, your selected charging handle, and the optimal muzzle device for your use case. A charging handle is not included unless selected above. Bolt carrier group and muzzle device are not included.

The 12.1" mid-length is the compact workhorse. It eclipses the 11.5" industry standard because it's a practical SBR length that preserves useful handguard real estate, runs smoothly when suppressed with minimal gas blowback, and retains just enough velocity to make heavy match loads useful at distance. In other words, it's more flexible, comfortable, and practical than an 11.5", while filling exactly the same role with zero downside.

The perfect pairing of the Method 12.1 barrel with the Midwest 11.5 combat rail allows for the most rail space and shortest, most aesthetic suppressor gap possible.

All QBKs come with the accessories and manuals included from the individual parts used during assembly.

Legal compliance notice: This upper receiver group includes a barrel shorter than 16 inches. Depending on the firearm’s configuration, its use may create a short-barreled rifle (SBR) subject to the National Firearms Act (NFA). The purchaser and end user are responsible for complying with all applicable federal, state, and local laws, including obtaining any required approvals and registration before making or possessing an NFA-regulated firearm. Do not assemble or use this product in an unlawful configuration.

Barrel Specs

• Material: 4150 CMV
• Chamber: .223 Wylde
• Twist: 1-7
• Rifling: 6-Groove
• Threads: 1/2-28
• Finish: Nitride
• Actual Length: 12.19"
• Gas System: Mid-length
• Gas Block Diameter: 0.750"
• Contour: Medium-Heavy Taper
• Weight: 26.4oz

Total QBK Weight: 46.8 oz (2 lbs 14.8 oz) (weight without charging handle, BCG, or muzzle device)