Mont. Code Ann. § 30-2-605
(1) The buyer's failure to state in connection with rejection a particular defect which is ascertainable by reasonable inspection precludes the buyer from relying on the unstated defect to justify rejection or to establish breach:
History: En. Sec. 2-605, Ch. 264, L. 1963; R.C.M. 1947, 87A-2-605; amd. Sec. 21, Ch. 575, L. 2005.