Seems to mostly work

assets/mac_10.tscn

@@ -403,7 +403,6 @@ _data = {
 [node name="mac10" node_paths=PackedStringArray("flare_light", "anim_player", "barrel_raycast", "casing_ejector", "mag_ejector", "audio_fire", "audio_empty", "audio_reload") instance=ExtResource("1_nb4p5")]
 script = ExtResource("2_6i1l4")
 gun_name = "Mac 10"
-recoil_amount = 1.1
 max_ammo = 30
 bullet_damage = 2
 bullet_drop = 0.01

assets/pistol1_pickup.tscn

@@ -154,8 +154,8 @@ points = PackedVector3Array(-0.860472, 0.302737, 0.0809691, -0.860472, 0.302737,
 radius = 1.26183
 
 [node name="pistol1_pickup" type="RigidBody3D" node_paths=PackedStringArray("collision_shape") groups=["pickup"]]
-collision_layer = 4
-collision_mask = 6
+collision_layer = 17
+collision_mask = 17
 script = ExtResource("1_pw3bx")
 gun_resource = ExtResource("2_x7kb7")
 collision_shape = NodePath("CollisionShape3D")

assets/revolver_1.tscn

@@ -433,7 +433,7 @@ script = ExtResource("2_7rsti")
 gun_name = "Ye Ol' Revolver"
 fire_mode = 1
 fov_zoom_amt = 0.96
-recoil_amount = 2.0
+recoil_amount = Vector3(0.5, 0.1, 0.1)
 max_ammo = 6
 bullet_damage = 5
 bullet_force_mod = 10