Nuno of Operator7 Airsoft has reviewed the Madbull spike’s bar rail for Popular Airsoft:
Dear News Fairy, I’ve been checking out my first product from Madbull Airsoft: the Spike’s Bar Rail, which I installed on a King Arms MOE M&P15, and its looking awesome!
http://www.popularairsoft.com/reviews/madbull-airsoft-spikes-tactical-bar-rail
Nuno (Operator7 Airsoft)
