Black Creek Precision manufactures lower receivers for AR-15, .308, and other firearms. They offer a variance process that allows small businesses to have their name and logo engraved on lower receivers in minimum lots of 25 pieces. The variance process involves completing paperwork, submitting it to the ATF for approval, and pre-production work including logo proofs. Once the variance is approved, the order can be placed and engraving and manufacturing will begin within 6-8 weeks. This process allows small gun shops to build their own brand by having custom engraved lower receivers.