Got some mail from Dytac about their new UXR4 M4 line with KeyMod rail systems, set to be released later this Summer. In the series will be an M4 CQB (pictured), Recon SBR, Silenced M4, and a Carbine M4. With all of the different barrel length configurations and KeyMod rail systems, the possibilities for customization are pretty awesome.
The UXR4 rails come in 8.4'', 10'', 13'' and 14.5'' with full rails, 9 slot rails, 5 slot rails and QD sling mounts. All should be available in either black or dark earth color.
Find out more on Dytac's Facebook page.