▁ 7 5   mm ▁M 3 ▁variant ▁was ▁brought ▁into ▁use . ▁ ▁The ▁ 3 7   mm ▁gun ▁was ▁aim ed ▁through ▁the ▁M 2 ▁per is cope , ▁mounted ▁in ▁the ▁mant let ▁to ▁the ▁side ▁of ▁the ▁gun . ▁It ▁also ▁sight ed ▁the ▁co ax ial ▁machine ▁gun . ▁Two ▁range ▁scales ▁were ▁provided : ▁ 0 – ▁for ▁the ▁ 3 7   mm ▁and ▁ 0 – ▁for ▁the ▁machine ▁gun . ▁The ▁ 3 7   mm ▁gun ▁also ▁featured ▁a ▁counter weight ▁– ▁a ▁long ▁rod ▁under ▁the ▁bar rel ▁– ▁though ▁it ▁was ▁ill ▁maintained ▁by ▁cre ws ▁who ▁knew ▁little ▁about ▁its ▁use . ▁ ▁There ▁were ▁also ▁two ▁. 3 0 - 0 6 ▁Brow ning ▁M 1 9 1 9 A 4 ▁machine ▁guns ▁mounted ▁in ▁the ▁h ull , ▁fixed ▁in ▁traverse ▁but ▁adjust able ▁in ▁elev ation , ▁which ▁were ▁controlled ▁by ▁the ▁driver . ▁These ▁were , ▁due ▁to ▁coord ination ▁issues , ▁removed , ▁though ▁they ▁would ▁be ▁seen ▁on ▁early ▁Sh erman ▁t anks . ▁ ▁Though ▁not ▁at ▁war , ▁the ▁U . S . ▁was ▁willing ▁to ▁produce , ▁sell ▁and ▁ship ▁arm ored ▁vehicles ▁to ▁Britain . ▁The ▁British ▁had ▁requested ▁that ▁their ▁Mat ilda ▁II ▁inf antry ▁tank ▁and ▁Cr us ader ▁cru iser ▁tank ▁designs ▁be ▁made ▁by ▁American ▁fact ories , ▁but ▁this ▁request ▁was ▁refused . ▁With ▁much ▁of ▁their ▁equipment ▁left ▁on ▁the ▁be aches ▁near