Gets the job done - DoubleStar Lower Parts Kit M-16

These Lpks are the only ones I've used for years. No other option comes close to competing price wise. The only complaint I've had ordering from optics planet was an order i placed in April where the item was out of stock and since I used a prepaid card they weren't able to refund me. 4 months later i had totally forgotten about the order but optics planet didn't and when the lpk finally came back in stock they were quick to get a hold of me to confirm that i still wanted it. Very good company that i will continue to do business with