For those that don't have a clue what Ariakon is here's a quick run down to help ya out. Ariakon is similar to Armotech in their marker line. They offer Mil-Sim guns primarily but have a few speedball markers for sale as well.
-Their main gun (and their best selling one) is the SIM-4. A replica of the M4A1 it is a stacked tube blowback (yeah yeah a "spyder clone"), but with numerous improvements over spyders. I'll let armorer address the differences later (or you can go to the Armotech section & look at the "Armotech & Kingman gun differences" thread).
The SIM-4 comes in several different varieties. There's a RIS package that has a rail interface system on the barrel for the mounting of accessories, and an "elite" package that includes a special scope mount, 4x scope & laser sight. There's also an RIS Elite package that combines these two:
-Next is their new marker the SIM-5. Due to launch August 1st (aka in a few days) the SIM-5 is basically the same gun as the SIM-4 in a different shell with a few new improvements. The SIM-5 looks like a MP5 rather then the M4A1 of the SIM-4.
The new SIM-5's also come with a quick release barrel system for quick & easy field cleaning.
-Finally we have the two speedball markers offered by Ariakon, the Nemesis & the Toro. While the Nemesis (top picture) is actually just licensed to Ariakon the Toro (bottom picture) is completely and exclusively made by Ariakon.
The Nemesis is a high end speedball marker that can most closely be compared to a budget Intimidator. With most of the same features but a significantly lower price tag.
The Toro on the other hand looks to challenge Spyders & Pirahanas for the entry level gun market.