With an A2 barrel profile, 1:7 barrel twist and ribbed hand guard, the Sporter Target is an AR-15 variant.
[['Sporter Target', 'BARREL_PROFILE', 'A2'], ['A2', 'BARREL_TWIST', '1:7'], ['Sporter Target', 'HAND_GUARDS', 'Ribbed'], ['[TABLECONTEXT]', '[TITLE]', 'AR-15 variants, R series models'], ['[TABLECONTEXT]', 'NAME', 'Sporter Target']]