Best upgrade I ever made to my AR, highly recommend picking one up from True North Arms.
Old video but you get the idea ( Hope its ok if I post it here. Feel free to remove if its not)
True North Arms Corp.
Website truenortharms.com
Email info@truenortharms.com
Instagram truenortharms
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True North Arms Corp.
Website truenortharms.com
Email info@truenortharms.com
Instagram truenortharms