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    Ics split gearbox nbb to ebb conversion

    Yer fire support was my next port of call was just wondering as I was guna buy and Ics m4 nbb as I don't go very often didn't want to spend too much upfront and was thinking of converting along with a few upgrades at a later date when I'm in a better position too 
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    Ics split gearbox nbb to ebb conversion

    Ok cheers
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    Ics split gearbox nbb to ebb conversion

    Oh right,  is that just full one piece gearboxes or split v2  
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    Ics split gearbox nbb to ebb conversion

    Hi I'm new to forums so forgive me if I'm not posting in the right place etc... just out of curiosity is it possible to convert an Ics nbb m4a1 to blowback? if they both have split gearboxes I know I would probably have to use the charging handle for an ebb and swap out the fake bolt.  would it...
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