Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_12834315_5 ( barrel_profile VARCHAR, name VARCHAR )

### Question ###
What is the barrell profile that goes with the gas piston carbine?

### Accurate SQL ###

SELECT barrel_profile FROM table_12834315_5 WHERE name = "Gas Piston Carbine"