CREATE TABLE table_17832 ("Colt model no." CLOB, "Diemaco model" CLOB, "Stock" CLOB, "Fire control" CLOB, "Rear sight" CLOB, "Forward assist" CLOB, "Barrel length" CLOB, "Barrel profile" CLOB, "Barrel twist" CLOB, "Hand guards" CLOB, "Bayonet Lug" CLOB, "Muzzle device" CLOB)

How many inches is the barrel length when the rear sight is weaver and the barrel profile is A2?
SELECT "Barrel length" FROM table_17832 WHERE "Rear sight" = 'Weaver' AND "Barrel profile" = 'A2'
SELECT "Barrel length" FROM "table_17832" WHERE "Barrel profile" = 'A2' AND "Rear sight" = 'Weaver'