They are Evolving. The first version had a shorter front picatinny rail, flush with the barrel lug. The later version has an extended picatinny rail over the barrel, with burst disk on the side. The latest version has the extended picatinny rail and American Air Arms logo by the barrel lug, with the burst disk underneath the chassis. The latest are now offered with M-LOK chassis for coupling attachments.What are distinguishing features between first run evols and the later produced models?
I have seen evols with burst disc visible and then mine is not.
View attachment 358125
View attachment 358126
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