Question: What is the rear sight in the Cole model no. 735?
SQL: SELECT "Rear sight" FROM "1-12834315-1" WHERE "Colt model no." = '735';

Question: What are the Colt model numbers of the models named GAU-5A/A, with No bayonet lug, No case deflector and stock of 2nd Generation? 
SQL: SELECT "Colt model no." FROM "1-12834315-1" WHERE "Bayonet Lug" = 'No' AND "Stock" = '2nd Generation' AND "Case deflector" = 'No' AND "Name" = 'GAU-5A/A';

Question: What's the type of muzzle devices on the models with Round hand guards?
SQL: SELECT "Muzzle device" FROM "1-12834315-1" WHERE "Hand guards" = 'Round';