The MLC upper receiver has 16.25″ of uninterrupted 1913 picatinny rail on the 12 o’clock position. The remaining 7 sides provide M-LOK compatible attachment points.
Monolithic rail platform piston barrels utilize a standard/suppressed option gas block with removable piston rod and spring. They possess proprietary coating and are cryogenically treated for long term durability.
5.56×45 (.223): 12″ | 14.5″ | 16″
6.8 SPC: 16″