imschur Posted December 5, 2009 Report Share Posted December 5, 2009 Justin Biddle Umarex's Marketing Manager has stated that they have been made changes to the Umarex action and sorted out the issues experienced by the M4 owners.Based on that statement I spent last night doing a fair amount of research. It appears many of the Colts were returned for repair and correction.Most of the problems fell into the same few categoriesFailure to FeedFailure to FireMagazines Falling OutFront Sight Post Too ShortThe failures to feed and fire in many cases were specific to ammo. It seems CCI worked the best while Winchester and Remington are the most problematic. I read of a few folks messing with their magazines to improve functionUmarex will send Colt M4 owners a new sight post upon request.Basically a few folks got good rifles while a majority of owners got frustration in one form or another. Many shooters returned their Colts and bought Smith & Wesson M&P 15-22's and Ruger 10-22'sIt seems Umarex by most reports has good customer service.Note: This is all info gathered from the web and not first hand experience. Quote Link to comment Share on other sites More sharing options...
rodent.22 Posted December 5, 2009 Report Share Posted December 5, 2009 many folks with trouble have been patient and started out by a good CLEANING before firing, and then running 300-400 rounds thru the arm. They seem to respond well to an actual break-in period.... Quote Link to comment Share on other sites More sharing options...
imschur Posted December 5, 2009 Author Report Share Posted December 5, 2009 That is so true of many firearms Quote Link to comment Share on other sites More sharing options...
rodent.22 Posted December 6, 2009 Report Share Posted December 6, 2009 where did you find Biddles press release? Will the action upgrades be offered to all owners? Quote Link to comment Share on other sites More sharing options...
imschur Posted December 6, 2009 Author Report Share Posted December 6, 2009 The info came from an RSS feed. Ill see if I saved it at the office Monday. What I wrote was pretty much everything that was stated. It came from the HK Umarex news info and that was the focus of the feed. The Colt comment was just kind of tossed in I found that comment interesting which is why I went off in search of info.Bump this Monday Quote Link to comment Share on other sites More sharing options...
techmike Posted December 8, 2009 Report Share Posted December 8, 2009 Thanks for the update/info. I have not had any issues with mine, other than ammo specific, but I would be interested in what was done to the action!TM Quote Link to comment Share on other sites More sharing options...
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