Webjan 20, 2019 · according to my research, the early sig mosquitos had issues but by the time gsg introduced the firefly, they had been worked out. After i went to rural king and. Webour selection of gsg firefly accessories is meticulously curated to meet the needs of the most discerning shooters. Webi wrote a couple reviews on the gsg firefly (one after each of my 2 range visits with it). First one can be found here:. After studying up on it a bit, i decided i'd give. Webi love…