You will appreciate this custom AR 15 upper assembly if you are a professional shooter. The model is quite elegant and has ideal technical performance for long-range shooting.
The material of the barrel is stainless steel; the gas pipe is made of high-quality aircraft steel. Note the top of the A3 receiver; it has a flat type and is made from 7075-T6 forged aluminum. It is one of the most preferred barrel models for the AP 15 product line. This modern AR 15 flattop upper assembly is a great solution if you upgrade your firearms. Many professional shooters have already appreciated this barrel model because of its excellent price-quality ratio. This barrel model does not include accessories such as BCG and a charging handle; please purchase it yourself. With such a product, you will have no problem with how to build AR 15 upper assembly.