I'm guessing a MacMillian TAC-308 (with Muzzle brake) - Souryuu
AR-15 with M203 - Kako
Bren - Warspite
??? - Shouhou
M240 or M60 (with Belt-fed Ammo and Hanging Riot Shield) - Nagato
AR-15 or probably AR-10 with scope - Haruna
Shouhou has a M21 sniper, Mogami has an FN-SCAR(H), Shigure possibly an FN-FNC or a Japanese type 89F. The Grenade launcher for Kako's rifle maybe either a HK AG-C/EGLM or AG36.
Shouhou has a M21 sniper, Mogami has an FN-SCAR(H), Shigure possibly an FN-FNC or a Japanese type 89F. The Grenade launcher for Kako's rifle maybe either a HK AG-C/EGLM or AG36.
Shigure is definitely holding a Type 89. Kako's is an M320 grenade launcher. Note the shorter barrel and slight difference in the receiver.
Souryuu's sniper is an Accuracy International AW50. Note the distinctive AW body and the black body makes it a .50 BMG variant.
Haruna is using M27 IAR due to the longer barrel and the 416 stock while Kako is using the HK416D with M320. AG36 has a huge vented polymer space above the launcher barrel.
And this is why I always check the comment section on Danbooru.
There is often something new you can learn from there... on top of the weird (but fun) realization that a huge number of danbooru residents either have/are in the military or are gun enthusiasts.
AK-74MFN Mk46Bren LMGHK416FN SCAR 17Remington Model 700RPG-7