AR-15 350 Legend 16" M4 Advanced Tactical Rifle Kit / 15" Mlok / Adaptive Stock. THIS KIT IS CONTAINS EVERYTHING YOU NEED TO BUILD A 350 LEGEND AR-15 EXCEPT A STRIPPED LOWER. This kit has upgraded option of 15" Mlok Rail and Adaptive 6-Position Stock.
The receiver is a flat top M4 Mil-Spec upper receiver are forged CNC Machined from 7075-T6 Aluminum, the hardest and most durable material of any upper. This 16” .350 Legend barrel is made from 4150 Chrome Moly steel, has 1:16 twist rate & carbine gas system. The rail is a 15” M-LOK rail made from aerospace grade aluminum and then hard coat anodized to improve the strength.