reblyell Posted August 29, 2008 Share Posted August 29, 2008 Greetings! Just wondering if anyone can give me an engineering overview as to why the M4 bolt carrier does not have an inertia spring (Like the M2) inside, cushioning it and the bolt? It looks like a whole lot of slamming steel going on without it! Especially with the gas assistance. Just a thought . . . Best! Quote Link to comment Share on other sites More sharing options...
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