AR15.Com Archives
 Difference between Primary Arms M3 and M4
SlowTA  [Member]
7/25/2010 10:56:54 PM
I am hoping to order one of those two later this next week and am wondering what the differences and pros and cons are? I am looking at the M3 multi-reticle btw. So far as I can tell, the M4 is AA powered and as such offers longer battery life. Is there anything else I am missing? I like the canted mount of the M3 better and will go with that one if there's nothing really extra that the M4 offers besides the battery life.
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Lancelot  [Moderator]
7/25/2010 9:50:46 AM
Size and weight. The M3 affords more mounting options.
SlowTA  [Member]
7/25/2010 3:49:33 PM
Wow, to be honest I had never even considered the weight to be different. I think I want an M3 because at a later point I can get much better mounts if needed.