AR57 1

Another cursed rifle, AR Five Seven that use P90 mags. Known for its weird look as you have standard AR lower and big chunky upper where mag is sit as in P90.

Model is rigged, there are two versions for rig, with and without ammo in the magazine. One with ammo in mag is... well, big, as ammo have some verts in it and also its separated to few parts so if you are not into animation of every case inside, you can just move mag fallower inside and remove one part so its look like ammo inside mag is actually moving(crude method, but few games do that with transparent mags).
Of Course there is also non-transparent magazine and rig without ammo inside so use this if you dont want to flood game with ammo that is not even visible.

Model have 4 PBR Materials in 4k + material for Vortex Venom Red Dot.
There is also FDE color variant inside.
Verts: 28K
Tris: 55K

UPDATE:
-modified magazine size slightly to fit real dimensions(its now tad shorter and have locking extrusions at the end)
-Moved a bit back part of AR upper to fit other lowers for AR platform(there was a bit gap there if you wanted to change it.)

Made in Blender.

PS. upper have separate material so you can remove lower and all addons and use your own parts without clogging game with unused textures.