I am going to order a reddot from primary arms. I have narrowed it down to one of two choices the m3 multi-reticle or the m4. I haven't been able to convince myself as to which one to use. Any info, advice, or pros and cons would be greatly appreciated. The rifle is a 16" carbine with a matech flip up rear site and rra flip up front site. I use the gun for plinking and destroying small varmints. Thanks Jeff
this http://www.primaryarms.com/product.s...9&categoryId=5
or this http://www.primaryarms.com/product.s...5&categoryId=5
this http://www.primaryarms.com/product.s...9&categoryId=5
or this http://www.primaryarms.com/product.s...5&categoryId=5

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