SELECT colt_model_no FROM table_12834315_1 WHERE bayonet_lug = "No" AND stock = "2nd Generation" AND case_deflector = "No" AND name = "GAU-5A/A"
Berapa nomor model Colt dari model bernama GAU-5A/A, tanpa bayonet lug, tidak ada deflektor kasus dan stok generasi ke-2?
CREATE TABLE table_12834315_1 (colt_model_no VARCHAR, name VARCHAR, case_deflector VARCHAR, bayonet_lug VARCHAR, stock VARCHAR)