ONLY AVAILABLE WHEN ORDERING A UPPER (IN DROP DOWN MENU OF UPPERS). THIS ALLOWS THE USER TO BUILD OUT THEIR LOWER THE WAY THEY WANT, AND HAVE A MATCHING LOWER FOR THEIR GEN-12. 
 
Lower is machined from billet 7075 and made to match perfectly with our GEN12 upper. This lower is compatable with most 308 DPMS gen1 patterned uppers in the event you want to convert your multi marked lower to a 308.