callum Posted October 27, 2017 Share Posted October 27, 2017 can anyone recommend where to start with upgrading my nuprol m4 delta pioneer? This is my first rifle and id like to increase the fps and gradually turn it into a dmr... any help would be appreciated Link to comment Share on other sites More sharing options...
Supporters Prisce Posted October 27, 2017 Supporters Share Posted October 27, 2017 Use the search function. Search Nuprol Delta and read the many posts about this... You probably won't like what they say, but it is the opinion of a lot of us that they aren't worth upgrading. Link to comment Share on other sites More sharing options...
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