Posted: 6/3/2026 11:50:38 PM EDT
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I notice that AU has some stripped M5 CM9-10H uppers, there is no mention if they are new or used but they look used in the pictures. I have a 16-inch AR6951 and was wondering if my existing bolt and charging handle will work in this upper? If so I may do a form 1 and SBR my existing lower. I hate to buy another BCG/Charing handle if I don't need it. |
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I would assume it will work on standard milspec lower & uses standard BCG/CH just like the bigger brother in 556… so that existing guns can be upgraded like the italian army did in 2023 https://www.esercito.difesa.it/comunicazione/Bandi-di-gara-Esercito/Cdo-delle-Forze-Speciali-dell-Esercito/Documents/Bandi-e-Avvisi/scheda%20tecnica%20Colt.pdf |
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Originally Posted By Frens: I would assume it will work on standard milspec lower & uses standard BCG/CH just like the bigger brother in 556… so that existing guns can be upgraded like the italian army did in 2023 https://www.esercito.difesa.it/comunicazione/Bandi-di-gara-Esercito/Cdo-delle-Forze-Speciali-dell-Esercito/Documents/Bandi-e-Avvisi/scheda%20tecnica%20Colt.pdf Thanks for info! |