A more expensive option with an identical operating system (though individual parts differ a bit) to the WK is the
RWA-180B in .223 Wylde, which should be compatible with 5.56 ammo. I haven't read anything on the RWA forums about misfeeds with 5.56 ammo, like happened on the earlier WKs with the Wylde chamber. It uses an imported Nodak 180 lower, so its non-restricted, with a Canadian RWA-made upper. The price over the WK gets you a match grade , made in Canada IBI barrell, a true 1913 rail (the WK's is slightly off spec, interfering with mounting some optics) on a handguard that can between 12" and 18" in length, reinforced, steel panels to avoid wear along the charging handle channel, an integrated brass deflector (though they need to update their pictures to reflect this change), and other goodies I'm sure RWA could tell you more about. The barrel can be had in rifle length, though you have to contact them directly for that, as it's not an option on their web page. If you have a WK already, they also sell a WK compatible upper with the specs noted above. Finally, they also sell 7.62, Blackout, and Grendel uppers for both their RWA lower and the WK lower. Basically, the WK gets you a basic, Model T style rifle (you can have any colour as long as its black

), meant to keep costs down, while the RWA is already hot-rodded up version
