The Carbine Rifle Mk II is the Weapon Workshop upgrade of the Carbine Rifle, raising damage per shot from 30 to 33 at the same fire rate and opening up the Mk II ammo list: tracer, incendiary, armor piercing, and FMJ rounds. Players sometimes call it the combat rifle Mk II, but the official name is Carbine Rifle Mk II - there is no separate combat rifle in GTA Online.
Costs, as of July 2026: the base Carbine Rifle is $13,000 and the conversion is $107,500, so $120,500 for the weapon itself. A full practical build adds armor piercing rounds ($66,000, research required), the 60-round extended clip ($25,925), the heavy barrel ($49,000), and a scope and grip, which puts the realistic total around $270,000.
Is it worth it? Yes, if you like its handling - it is accurate, controllable, and comfortable at mid range, and with armor piercing rounds it chews through the juggernauts and armored NPCs in Casino and Cayo Perico work. The honest caveat: the Special Carbine Mk II does slightly more damage per shot with similar handling, so if you are only converting one assault rifle, convert that one instead.
The recommended loadout is armor piercing rounds, extended clip, heavy barrel, medium scope, and a grip. AP rounds are the class-defining pick because armored enemies are the only ones that slow you down; everything else dies fast regardless.
For money making, a Mk II rifle is the workhorse for contact missions, business battles, and heist setups - faster clears mean more dollars per hour. This one does that job well; it is just not the class best.
