Everybody knows that the Devs don't have an animator working in their team, so the guns they are adding ara guns that have a pre-used animation. So I schearched for some guns that fit the game, and have similar animations as the ones in-game.

LMGs:
RPK (762x39)-uses akm mags
RPK-74(545x39)-uses the new 45rnd ka-74 mag

Rifles:
R700 with RIS scope mount (.308)-internal 5rnd mag and uses ARs scopes
L115a3 (.338 LM)-5rnd mag and uses a new hunting scope(8x16-50)

Handguns:
Silver Revolver (.45acp)-as in dayz mod, holds 6rnds
Longhorn (.308)-uses the bk-18 animation