At One Click Purchasing, we are your reliable source for the NSN part 121-121-103 manufactured by Tricor Systems Inc. We carry a wide range of popular NSN items on our website, including Door Access Weapon like part number 121-121-103 which is listed with the NSN 5342012572658 for easy identification. If you are interested in 121-121-103 item, then take the advantage of our online RFQ service, or peruse our website as you see fit to find other items of interest that you may wish to learn more about.