Sons Of Liberty Gun Works East India Starter Kit Upper Features The Sons of Liberty Gun Works East India Starter Kit is built around an 11.5 inch Liberty Fighting Barrel chambered in 5.56 NATO paired with the company s own V2 gas block for correct gas system timing. The barrel is installed using a proper USGI barrel nut giving the builder a professionally assembled upper without needing to source and torque the barrel and gas block themselves. QPQ coated M4 feed ramps are engineered for smooth reliable feeding from the magazine into the chamber a detail that matters for function under rapid fire. Before leaving the factory every barrel is high pressure tested and magnetic particle inspected two quality checks that catch structural flaws standard barrels may not reveal. Finished in a matte phosphate coating the East India Starter Kit resists corrosion while keeping a traditional low-reflective appearance on the build. The 1/2x28 thread pattern at the muzzle is ready for the builder s muzzle device of choice since none is included with this kit. Likewise no bolt carrier group or charging handle ships with the upper letting the builder select components suited to their particular use case or budget. Sons of Liberty Gun Works designed this kit specifically as a building block giving the shooter a correctly assembled foundation to finish with their own choice of muzzle device and internals rather than having to know how to install a barrel and gas block from scratch. Sons Of Liberty Gun Works East India Starter Kit Upper Specifications Manufacturer: Sons Of Liberty Gun Works Model: East India Starter Kit Type: Upper Caliber: 5.56 NATO Barrel Length: 11.5 Color: Black Finish: Phosphate Barrel Type: Threaded Thread Pattern: 1/2x28 Compatible Hosts: AR-15 Available At: GrabAGun