It should just be by using the grenade button with the rifle out but i think it might be bugged. i havent been able to get it to work for me either and it was fine like 2 weeks ago. the only thing i can think of is that the updates broke it somehow.

Damn, guess the latest update may have bugged it.

Same here. Tried to throw a grenade or aiming while using this weapon, but nothing happens.

im glad im not the only one this has happened to ive pressed every button on my keyboard and nothing happened i have no idea how to do it

Yea I've given up on that weapon. I just end up giving it to Emile since he's able to use it.

I'll give it to Emile then. Its still bugged in 2025.

I've pressed all the keys on my keyboard, it seems to still be bugged.

Bugged on a X-Box controller on the PC as well. Specifically I use a Turtle Beach Recon which requires a constant USB tether to work, so it's definitely not an issue with wireless signal from controller to PC causing it to not work