Saiga "Spike"

Saiga but.... in bullpup format, using the Spike Chassis. Known mostly from the hit game, Payday 2 which was called the Grimm shotgun.

Functionally it's a Saiga but in a cool package bullpup form factor. Has rails for all your attachments.

Accepts muzzle devices and it works like a Saiga

Features

Saiga shotgun in a bullpup form
Has picatinny rails for all your attachment needs; Also accept muzzle devices
To use, remember to flick the safety off by pressing on the fire selector
Dual wield for that Payday experience
Can be found in Firearm > Magfed Shotgun
Also new, the Grimm 12G version which is the original request, features shorter frame and full auto

Model from Warface; With thanks to Riceler for the support