CREATE TABLE table_66916 ("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)

Name the muzzel device with barrel twist of 1:10
SELECT "Muzzle device" FROM table_66916 WHERE "Barrel twist" = '1:10'
SELECT "Muzzle device" FROM "table_66916" WHERE "Barrel twist" = '1:10'