Our Gucci BRN 180 from JMAC Customs
This video details the assembly and customization of a JMAC Customs BRN-180 upper receiver. It highlights a common issue with the BRN-180's recoil spring length and provides a solution by trimming the spring. The video also showcases various JMAC Customs accessories, including stock adapters, stocks, handguards, and muzzle devices, emphasizing their quality and aesthetic appeal.












