Here is the New CMMG MK4 which is a new model rifle in the new 300 AAC Blackout. It is very light, has adjustable stock, rail, fixed front sight and popup rear magpul sight. All that it needs now is a suppressor! That may never happen or if it does will take a long time.
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Have you shot any subsonics through it yet? 220gr+ If so, did they cycle ok?
Have you added a scope or any optics…and how did it work with the front sight post?
Thanks, nice rifle.