rt7 Posted August 2, 2011 Report Share Posted August 2, 2011 I was wondering which stripped upper fits best with a dpms pattern cmmg lower? A friend of mine has a cmmg lower with a dpms ap4 upper and has to use an accu-wedge to get rid of top to bottom and left to right play. My lower is complete with a ubr stock, I have an sass barrel and gas block. I'm waiting on a hand guard to see if I get a high or low profile stripped upper. I was thinking SI defense might be the way to go. I was also wondering what kind of muzzle brakes or compensators you guys were happy with. Thanks in advance for any info. Quote Link to comment Share on other sites More sharing options...
survivalshop Posted August 3, 2011 Report Share Posted August 3, 2011 I have a SI Defence upper on my CMMG lower. Mine is a snug fit ,very little wiggle .I have had some problems with the lower as far as some fitment issues , minor stuff ,like the bolt catch had to be worked to make proper contact with the bolt , to hold it back . My CMMG will not function with Magpul Pmags , no problems with CProducts or DPMS mags .I like the lower ,it has nice features & a good feel.The SI Defence upper is the origanal rail height as would be a Fulton Armory upper ,but the SI Defence is billet. Quote Link to comment Share on other sites More sharing options...
rt7 Posted August 4, 2011 Author Report Share Posted August 4, 2011 Thanks survivalshop, I'm gonna go with the SI, yours looks like a good match. I tried my buddy's ap4 upper and you could hear it rattle! Quote Link to comment Share on other sites More sharing options...
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