Holosun red dot is great an very bright ! Its for real firearms so for a gbbr its perfect !do yourself a favor and dont waist your money on cheap red dots cuz in the end you will end up with 5,6 useless dots instead of gettin one legit .The balaclava with the mesh in front its not good its uncomortable ! The china made magpul style ctr stock its just ok !it doesnt fill like a real magpull so yet again ..save money and get the real one!powair 6 the best place to shop in europe !