Originally Posted by c_bass16
No, the R-15 is just Remington's version of the AR15. It's actually even made by Bushmaster.
The only difference you'll have is that your new upper won't have a matching camo pattern which leaves you two options. (ok three options)
Either strip your complete rifle and have it refinished to match what you're new upper will probably look like. Either black or tan or whatever
Have your new upper 'hydrodipped' in the pattern that your R-15 already has so that it will match the lower.
or just leave the new upper alone...it'll be two tone, but who cares..it's just a gun.
A big plus one. I dumped the best stuff I could get into my lower, knowing that I'd really only "need" one lower, and that I'd only need to spend the $$$ on the lower once (with Geissle trigger prices, once is enough... but still worth it). I have a couple different uppers that I swap around on the same lower. My calling upper is FDE w/camo, looks odd on a black lower, but not a single coyote has ever laughed at it
. Having uppers in different calibers is pretty handy too, especially when the trigger, cheek weld, etc is always exactly the same. 5.56 for the range and the yotes, 6.8SPC when deer/wolf season opens.