I built a rifle for my dad, finished last night. They gun store where I picked up the lower had zero mags. I searched my usual internet places last night to no avail. Did the same this morning. When I didn't find any I placed the wanted to buy ad for 2 mags. I then left my house. I went to 3 individuals I deal with looking for mags. I found these pmags. I bought 5 for 55 a piece. My dad can only afford 2 so im selling the remaining 3.