It wasn't long ago I had uppers receiver with no lower receivers. Mainly I bought upper I wanted for my M-16.
I got into assembling lowers when Primary Arms was running Aeros lowers cheap. All of my upper have their own BCG. Not really an economic way to go, but it did pay off when I added the lower for complete guns. Then again it sucks when cleaning multiple uppers.
I got into assembling lowers when Primary Arms was running Aeros lowers cheap. All of my upper have their own BCG. Not really an economic way to go, but it did pay off when I added the lower for complete guns. Then again it sucks when cleaning multiple uppers.