Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Name the stock for colt model mt6601

### Inputs:
table_name: table, columns: ['Colt model no.', 'Name', 'Stock', 'Fire control', 'Rear sight', 'Forward assist', 'Case deflector', 'Barrel length', 'Barrel profile', 'Barrel twist', 'Hand guards', 'Bayonet Lug', 'Muzzle device']

### Response:
SELECT Stock FROM table WHERE Colt model no. = MT6601