CREATE TABLE table_12834315_5 (barrel_length VARCHAR, colt_model_no VARCHAR)

What is the barrel length for a cold model le6921sp?
SELECT barrel_length FROM table_12834315_5 WHERE colt_model_no = "LE6921SP"
SELECT "barrel_length" FROM "table_12834315_5" WHERE "LE6921SP" = "colt_model_no"