Not to cause trouble, but isn't the pictured gun an RTF not an RTF2? I was under the impression the Gen 3RTF had gills, and the Gen 4 was the RTF2 (with straight serations). I could be wrong though.
"No greater wrong can ever be done than to put a good man at the mercy of evil, while telling him not to defend himself or his fellows. In no way can the success of evil be made more sure" TR