CREATE TABLE "ar_series_models" (
  "colt_model_no" text,
  "name" text,
  "stock" text,
  "fire_control" text,
  "rear_sight" text,
  "forward_assist" text,
  "case_deflector" text,
  "barrel_length" text,
  "barrel_profile" text,
  "barrel_twist" text,
  "hand_guards" text,
  "bayonet_lug" text,
  "muzzle_device" text
);

Question: Name the muzzel device with barrel twist of 1:10
SQL: SELECT "muzzle_device" FROM "ar_series_models" WHERE "barrel_twist"='1:10';

Question: Name the bayonet lug with ar-15 lightweight
SQL: SELECT "bayonet_lug" FROM "ar_series_models" WHERE "name"='ar-15 lightweight';

Question: Name the hand guards for ar-15a2 government carbine and barrel twist of 1:9
SQL: SELECT "hand_guards" FROM "ar_series_models" WHERE "name"='ar-15a2 government carbine' AND "barrel_twist"='1:9';

Question: Name the barrel length for barrel twist of 1:7
SQL: SELECT "barrel_length" FROM "ar_series_models" WHERE "barrel_twist"='1:7';