I have put together a number of uppers for my target ARs, but since they were all 223/5.56, I didn't have a problem swapping BCGs. That is changing.

I am now putting together a 224 Valkyrie upper for sling thousand yard matches, and the round requires a different bolt. The vendor I most frequently use for parts is offering a choice between a Double Star and an Anderson BCG.

I know that both companies make ARs, but I am not aware of their reputation for quality. Can anyone offer some insight about either company's reputation for quality?

As a significant footnote: it is my understanding that I MUST use a BCG designed for an AR, not an M16 due to state law.

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