text: Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
  ### Context:
  CREATE TABLE table_12834315_8 (barrel_length VARCHAR, rear_sight VARCHAR, barrel_profile VARCHAR)
  ### Question:
  How many inches is the barrel length when the rear sight is weaver and the barrel profile is A2?
  ### Answer:
  SELECT barrel_length FROM table_12834315_8 WHERE rear_sight = "Weaver" AND barrel_profile = "A2"