Under Settings > FFL Buy, add the below list of FFLs into the exclusion section.
Sportsman's Warehouse FFL Numbers:
154770016B10238 154031016B26946 156081015B13711 156021015B13709 157063014B01544 157019016B07161 157007014B06191 159069014B55645 159031015B57134 159103015B56731 159021016B57286 162149015B11109 162065014B02570 339101016B19516 339073016B19565 341003014B05595 345105014B00962 455107016B05605 461117016B08775 431025015B09064 435063016B11234 435097014B10440 435003015B08647 438125015B11436 438045015B11125 438055014B13278 542153014B00678 547079014B02859 572103015B05247 584005014B06505 584035016B10157 584001014B00963 584069015B00308 584041016B01711 584041016B16556 584077015B00435 583021015B01285 583001016B02408 583013015B03177 583025016B00529 585001015B00528 585045015B01908 585013015B02526 616055015B04678 616015015B04679 825003014B10755 825125015B08937 825049016B09768 825013015B08929 823041015B12424 825055016B09574 823017014B14711 982005016B02495 982083014B00426 982019014B00073 982069015B02115 982001014B00002 982027014B01991 987049015B05957 987035014B34833 987045015B05962 987047016B02514 987035015B04287 987035015B02970 987057016B34981 987049015B34907 987053014B00766 986013014B00926 986013016B01713 986013014B16430 986019016B01791 986017014B08215 986005014B08303 988003014B02486 988031015B00579 988510016B04199 933073015B09471 933065016B09677 933065014B08782 933065016B08319 968013016B05873 968097015B04558 968023016B04841 968067016B04087 968067014B06429 968061014B01457 968007016B04053 968101015B06586 968089016B03110 993067016B04295 993043014B04829 993029015B01838 991073014B12106 991053016B04132 991015016B05896 991017016B05722 992020014B00597 992170015B01116 992090016B00854 992110015B02690