BORE Shohola PA Posted December 24, 2022 Report Share Posted December 24, 2022 Did all Costa Mesa produced Ar180 rifles have 3 pronged flash hiders or there were different variations? Thank you. Quote Link to comment Share on other sites More sharing options...
BigBoy99 Posted December 30, 2022 Report Share Posted December 30, 2022 My Costa Mesa AR18 came with the three prong flash hider. Quote Link to comment Share on other sites More sharing options...
maschinenpistole Posted January 1, 2023 Report Share Posted January 1, 2023 3 prong unless you had a carbine/shorty, which would have come with a cone-type flash hider. Some people replaced/changed the 3 prong with a AR-15 type birdcage flash hider. Quote Link to comment Share on other sites More sharing options...
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