Wes-NGU Posted April 24, 2013 Posted April 24, 2013 Hi guys, anyone else on here thats got an umarex Ump45 sportline? Its a great gun but I wanted to grease up the gearbox as it sounds a bit 'clacky' but not sure how to gain access to it as it seems to be a 1 piece construction. Any help would be great Thanks
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