"Full auto pistol. Caseless MEP rounds allow for large clip"
The RIA 1010 is a Sidearm introduced in SAS: Zombie Assault 4 (included in the Holiday Update). It is one of three pistols to naturally be full auto. It comes at low levels. The weapon has the largest clip size of the pistol class in SAS 4.
The RIA 1010 is fully automatic. Though it is weaker than many pistols, it has a very high aforementioned capacity and a decent reload speed. The 1010's lack of firepower is countered by its full-auto capabilities, enabling it to be Overclocked.
RIA 1010 is a possible variant of its only line-mate with with slightly smaller size, a larger clip, more barrel detail (additional barrel extender) and a special grip on the bottom.
It is one of the two full auto pistols brought to SAS 4 in the Holiday Update. There are now three naturally full-auto pistols in the game, along with the CM 205 and 225.
The rate of fire for RIA 1010 on Mobile is a little low as it's equal to Sabre (which is much more powerful), which results that most players will use Sabre (if they have) instead of RIA 1010. However, if they want, they can augment Overclocked for RIA 1010.