The Calico M951 is a select fire version of the nearly identical M900 Semi Auto Carbine, except the 951 has a special compensator (much like a mini Cutts Compensator) that is larger than the compensator for the M900.
”
— Item Description
The Calico M951S is a Warbox Sniper Rifle.
Overview
The Calico M951S is a fully-automatic sniper rifle. It has the highest magazine capacity and fire rate of any sniper-class weapon, making it very effective for all ranges of combat. The weapon is capable of two-hit kills