diff --git a/data/json/bionics.json b/data/json/bionics.json
index 463f9b11c6ca..5a000f5ab7d3 100644
--- a/data/json/bionics.json
+++ b/data/json/bionics.json
@@ -121,7 +121,6 @@
     "name": { "str": "Shotgun Arm" },
     "description": "Concealed in your left arm is a 12 gauge shotgun.  Activate the bionic to fire and reload the shotgun.",
     "occupied_bodyparts": [ [ "arm_l", 15 ] ],
-    "encumbrance": [ [ "arm_l", 5 ] ],
     "act_cost": "50 J",
     "fake_item": "bio_shotgun_gun",
     "flags": [ "BIONIC_TOGGLED", "BIONIC_WEAPON", "BIONIC_NPC_USABLE" ]
@@ -1135,7 +1134,6 @@
     "name": { "str": "Gasoline Fuel Cell CBM" },
     "description": "A small gasoline fuel cell fixed to your scapula.  Despite its limited energy output compared to other fuel cells, this device still produces a significant amount of heat dissipated through a heat exhaust protruding from your back.  A diffuse network of bio-plastic bladders has been meshed with your circulatory system and serves as a fuel tank.",
     "occupied_bodyparts": [ [ "torso", 8 ] ],
-    "encumbrance": [ [ "torso", 5 ] ],
     "fuel_options": [ "gasoline" ],
     "fuel_capacity": 500,
     "fuel_efficiency": 0.25,
@@ -1149,7 +1147,6 @@
     "name": { "str": "Micro Reactor" },
     "description": "This stripped down mini-reactor generates impressive amounts of bionic power but slowly irradiates the user.  1 plutonium fuel cell provides 1000 charges producing 10kJ of power a turn, while not active & fueled provides a constant 50J of power.",
     "occupied_bodyparts": [ [ "torso", 55 ] ],
-    "encumbrance": [ [ "torso", 5 ] ],
     "fuel_options": [ "plut_cell" ],
     "fuel_capacity": 10000,
     "fuel_efficiency": 1,
@@ -1165,7 +1162,6 @@
     "name": { "str": "Advanced Micro Reactor" },
     "description": "This stripped down mini-reactor has been heavily modified and is more efficient and safer than the base model.  1 plutonium fuel cell provides 1500 charges producing 10kJ of power a turn, while not active & fueled provides a constant 75J of power.",
     "occupied_bodyparts": [ [ "torso", 55 ] ],
-    "encumbrance": [ [ "torso", 5 ] ],
     "fuel_options": [ "plut_cell" ],
     "fuel_capacity": 12000,
     "fuel_efficiency": 1,
diff --git a/data/json/items/gun/bio.json b/data/json/items/gun/bio.json
index b6a7667ed0fd..79d8687f4287 100644
--- a/data/json/items/gun/bio.json
+++ b/data/json/items/gun/bio.json
@@ -17,10 +17,10 @@
     "ranged_damage": { "damage_type": "bullet", "amount": 2 },
     "dispersion": 500,
     "durability": 6,
-    "clip_size": 4,
-    "modes": [ [ "DEFAULT", "single shot", 1 ], [ "burst", "double", 2 ] ],
+    "clip_size": 8,
+    "modes": [ [ "DEFAULT", "single shot", 1 ], [ "burst", "double", 2 ], [ "AUTO", "auto", 4 ] ],
     "reload": 200,
-    "flags": [ "NEVER_JAMS", "NO_DROP", "RELOAD_EJECT", "NO_UNWIELD", "TRADER_AVOID", "RELOAD_ONE" ]
+    "flags": [ "NEVER_JAMS", "NO_DROP", "RELOAD_EJECT", "NO_UNWIELD", "TRADER_AVOID" ]
   },
   {
     "id": "bio_emp_gun",