havok Posted June 14, 2014 Report Share Posted June 14, 2014 I own a Rock River Lar-8 but I want to change the upper and lower because I don't like the rra lower. Will the mega maten billet upper and lower except the internals from the rra lower and will the maten except the bolt carrier from the rra upper? Thanks for the help Quote Link to comment Share on other sites More sharing options...
edgecrusher Posted June 14, 2014 Report Share Posted June 14, 2014 Lower internals should be good to go, but the bcg is unknown. What is known is that it does except both Armalite and DPMS bcg. Now I believe (but am a bit unsure) that RRA bcg is longer. Quote Link to comment Share on other sites More sharing options...
planeflyer21 Posted June 14, 2014 Report Share Posted June 14, 2014 I own a Rock River Lar-8 but I want to change the upper and lower because I don't like the rra lower. Will the mega maten billet upper and lower except the internals from the rra lower and will the maten except the bolt carrier from the rra upper? Thanks for the help No. The LAR-8 BCG is substantially longer and so is the upper receiver to accomodate. Almost an inch. Quote Link to comment Share on other sites More sharing options...
havok Posted June 14, 2014 Author Report Share Posted June 14, 2014 ok, will the barrel from the rra lar-8 mate to the ma-ten upper? Quote Link to comment Share on other sites More sharing options...
edgecrusher Posted June 14, 2014 Report Share Posted June 14, 2014 Maybe, but it won't do you any good if the bolt won't fit in another carrier. I know your trying to save some money, but the RRA isn't a good donor platform Quote Link to comment Share on other sites More sharing options...
blue109 Posted June 14, 2014 Report Share Posted June 14, 2014 probably better off selling or trading for something else if you can't live with it. Quote Link to comment Share on other sites More sharing options...
unforgiven Posted June 15, 2014 Report Share Posted June 15, 2014 ^^^^ I would concur. Quote Link to comment Share on other sites More sharing options...
survivalshop Posted June 15, 2014 Report Share Posted June 15, 2014 Yes , probably worth more as a factory complete rifle . Quote Link to comment Share on other sites More sharing options...
Moe Posted June 16, 2014 Report Share Posted June 16, 2014 Just finished putting a LAR-8 together. Edgecrusher and Blue109 are correct. You can't even use other brand magazines. Quote Link to comment Share on other sites More sharing options...
havok Posted June 17, 2014 Author Report Share Posted June 17, 2014 (edited) I'm going to sell the Lar-8 and get the Dpms gen II recon. After consideration, I'm going to keep the Lar-8 but thanks for all your info. Edited June 17, 2014 by havok Quote Link to comment Share on other sites More sharing options...
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