Overview Reviews Product Description Magpul Industries Rail Section, Fits M-LOK Hand Guard, Polymer, 5 Slots MAG590-BLK Product Videos Product Reviews Write a Review Write a Review × Magpul Industries MAGPUL M-LOK POLY RAIL SECT 5 SLOTS Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *