Quote:
Originally Posted by emopunker2004
Word of advice, it those are MBUS sights, they're not heat resistant enough to be on the gas block from what Magpul says. Just an FYI.
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Appreciate the advice. My local shop suggested them, as he runs them on one of his peices. (Temps until we can narrow down the optics of choice). Anyway, several 100 rounds down under some intense heat and all is well so far. But will closely watch/monitor.