Fully licensed SIG Sauer MPX-K replica Strong Lightweight polymer construction with full metal gearbox Complete SIG Sauer trademarks Minimalist folding skeleton stock Adjustable hop-up accessible under the dust cover Semi- and full-auto fire modes Full-length top 1913 picatinny RIS for mounting optics, lights, lasers, or other accessories Handguard features M-LOK slots at 3, 6, and 9 o'clock positions 100 round mid-cap magazine Ambidextrous magazine release for right- or left-handed shooters Front-wired with small tamiya connector