Here's All Weapon Buffs and Nerfs in MW3 Season 1

The patch notes for the first major update of Call of Duty: Modern Warfare 3 are here, and we have all the weapon buffs and nerfs in MW3 Season 1.

MW3 Season 1 arrived with three new Battle Pass weapons, two fresh multiplayer maps, and the return of Gunfight. Along with the additions to multiplayer, the developers also implemented a long list of weapon buffs and nerfs for some fan-favorite options, like the MTZ-556 and BAS-B. Several Call of Duty: Modern Warfare 2 guns received significant changes as well.

Here's all the weapon changes in MW3 Season 1, per Activision.

Here's All Weapon Buffs and Nerfs in MW3 Season 1

Check out the full list of weapon buffs and nerfs in Modern Warfare 3 Season 1:

Assault Rifles

MTZ-556

• Increased maximum hipfire spread while standing by 10%.
• Increased maximum hipfire spread while crouched by 6%.
• Increased hipfire spread penalty incurred while firing by 10%.
• Increased hipfire spread penalty incurred while moving by 4%.
• MTZ Natter Heavy Short (Barrel): Decreased hipfire spread benefit by 5%.
• Bruen Thunder V9 (Stock): Decreased hipfire spread benefit by 6%.

Battle Rifles

BAS-B

• Increased damage multipliers in semi-auto fire type to intended values.
• Lower-Torso: 1x to 1.2x
• Arm & Hand: 1x to 1.35x

Sidewinder

• Decreased aim down sights time from 280ms to 265ms (-5%).
• Tempus Predator Precision (Barrel): Increased gun kick control benefit by 5%.
• Huntsman Series-R Integrated Suppressor (Barrel): Increased gun kick control benefit by 7%.
• RB Borealis Grip (Rear Grip): Increased gun kick control benefit by 5%.

Submachine Guns

Striker

• Decreased sprint to fire time from 110ms to 100ms (-9%).
• Decreased aim down sights time from 230ms to 215ms (-7%).
• Striker Stubby (Barrel): Added 9% aim down sights time benefit.

WSP Swarm

• Decreased sprint to fire time from 110ms to 88ms (-20%).
• Decreased aim down sights time from 190ms to 175ms (-8%).

Striker 9

• Decreased sprint to fire time from 110ms to 100ms (-9%).
• Decreased aim down sights time from 225ms to 205ms (-9%).
• Striker Stubby (Barrel): Added 9% aim down sights time benefit.

Shotguns

Lockwood 680

• Tac-Stance will no longer reduce damage pellet count.

Marksman Rifles

MCW 6.8

• Equipping the Full-Auto Conversion Kit and 60rnd Drum Magazine will no longer result in a broken aim down sights animation.

Melee

Riot Shield

• Increased melee damage from 50 to 75 (+50%).
• Added a 10% movement speed penalty while stowed.

Attachments

S-37C DL Breacher Device (Muzzle)

• Decreased hipfire spread benefit by 14%.
• Resolved an issue that prevented one-hit melee kills in round-based Modes.

Bruen Tactical Vertical Grip (Underbarrel)

• Decreased hipfire spread benefit by 8%.

Hollowpoint (Ammunition)

• Decreased inflicted sprint penalty time from 800ms to 200ms (-75%).

Here's Every Weapon Buff and Nerf in MW3 Season 1 for MW2 Weapons

Assault Rifles

M4

• Increased maximum damage from 28 to 35 (+25%).
• Decreased head and neck damage multipliers from 1.37x 1.1x (-20%).

Battle Rifles

TAQ-V

• Increased lower-torso, leg, and foot damage multipliers from 0.8x to 1.1x (+38%).

Submachine Guns

Vaznev-9K

• Increased near-medium damage from 29 to 30 (+3%).

ISO 45

• Increased maximum damage from 30 to 33 (+10%)

Shotguns

KV Broadside

• Increased far-medium damage range from 9m to 10m (+8%).
• Decreased aim down sights spread slightly.

Light Machine Guns

RAAL MG

• Decreased aim down sights time from 470ms to 390ms (-17%).
• Decreased sprint to fire time from 375ms to 320ms (-15%).
• Decreased tactical sprint to fire time from 496ms to 416ms (-16%).

556 Icarus

• Increased maximum damage from 28 to 34 (+21%).
• Decreased head damage multiplier from 1.4x to 1.1x (-21%).

Marksman Rifles

SP-R 208

• Increased maximum damage range from 15m to 20m (+28%).
• Decreased aim down sights time from 370ms to 340ms (-8%).

Handguns

Basilisk

• Increased maximum damage range from 5m to 7m (+35%).
  
• Increased near-medium damage range from 6m to 15m (+140%).
  
• Increased far-medium damage range from 17m to 23m (+32%).