Composite materials based on aluminum alloy 5xxx series, reinforced by 0.1 wt.% MWCNTs or 0.1 wt.% WC1-x/MWCNTs, were synthesized by high-energy ball milling and subsequent gas extrusion. The structural-phase composition and physical-mechanical properties of bulk composites are characterized. By comparative analysis of the results obtained with published data on the properties of composites based on aluminum alloys 5xxx series shows the prospects for the use of gas extrusion for consolidation, as well as the effectiveness of alloy strengthening by microadditives MWCNT-hybrid nanostructures.