2/15/2012 1:02:35 AM Augee: kkuo12887: CTbuilder1: kkuo12887: Can you mount a Magpul AFG onto a rail of an M4 while having both a PEQ and light? Yes. But I cannot see it being used correctly in this case. Can it be effective? No. You can use an Magpul AFG just fine with lights and lasers. Effectiveness is a function of the end user. I’d like to see you show me a optimal arrangement of an Magpul AFG , PEQ, and Surefire weapon light (not the X300) on an M4 with standard rails (KAC). You will literally have only 1 free unoccupied rail. Can it work rails longer than the standard KAC rails? Perhaps. But when your BDE policy on modifications to weapons is basically only accessories that you can attach to the supplied rails, that Magpul AFG simply won’t work.