Rezi 12: Shotgun stats and attachments in MW4

Rezi 12 is a shotgun in Call of Duty: Modern Warfare 4. It fires 150 RPM from a 6-round magazine with 24 reserve rounds, and it unlocks at Player Level 4. Its Apex Attachment is the Rezi 12 Enforcer.

Build with Rezi 12 All shotguns

ShotgunUnlocks at Player Level 4Apex: Rezi 12 Enforcer

Community-reported

Tier A (DMZ Radar). Tier lists

4 Multiplayer and 1 DMZ builds from CODMunity, pick rate 2.2%. Popular builds

Official Rezi 12 stats

Rezi 12 stats from Activision's launch weapon sheet
Stat	Value	Rank among shotguns
Fire rate	150 RPM	#1 of 2
Magazine	6 rounds	#2 of 2
Reserve	24 rounds	#2 of 2
Total rounds	30	Derived: magazine plus reserve
Weapon levels	60	#1 of 2 (tied)
Unlock level	Player Level 4	Level cap is 55
Caliber	12-gauge	As named in Activision weapon text

Damage, time to kill and the in-game Gunsmith bars are not published by Activision, so they are not shown. Community-reported movement, handling and recoil values follow in their own section.

Derived firing numbers

Numbers calculated from the published fire rate and magazine size
Number	Value
Shots per second	2.5
Time between shots	400 ms
First to last shot of a full magazine	2.00 s

These are arithmetic on the published fire rate and magazine size. They ignore reloads, recoil and burst or pump cycling, and they say nothing about damage.

Rezi 12 community-reported stats

Community-reportedNothing attached, from CODMunity (read October 28, 2026); community-reported and unverified.

How this is sourced

Movement, handling, recoil and ammo values for the Rezi 12 with nothing attached. Activision has not published them, and they are launch data that changes with patches. Fire rate, magazine size and total rounds are Activision's published numbers. Damage and time to kill are not included.

Each attachment below lists its biggest changes as a percentage of the value above, and the changes of everything equipped are multiplied together (the source's rule, not confirmed by Activision). The Apex Attachment is listed with its own changes further down. Where these numbers come from.

Mobility

Movement speed: 4.72 m/s
ADS movement speed: 3.09 m/s
Sprint speed: 6.26 m/s
Tactical sprint speed: 7.34 m/s
Crouch movement speed: 2.25 m/s
Strafe speed: 3.61 m/s
Firing movement speed: 4.25 m/s

Handling

ADS speed: 340 ms
ADS out speed: 400 ms
Sprint to fire speed: 160 ms
Reload time: 6131 ms
Raise speed: 1233 ms
Drop speed: 800 ms

Recoil

Vertical recoil: 98.5
Horizontal recoil: 17.4
Vertical gun kick: 21.3
Horizontal gun kick: 6.1
ADS idle sway: 0.54°
ADS gun bob: 0.09°

Range and bullets

Bullet velocity: 340 m/s
Damage rangeAn index: 100 is the weapon's own damage range, and attachments scale it: 100%
Bullet penetration: 9.0 in

Hip fire and flinch

Hip idle sway: 1.63°
Hip gun bob: 1.09°
Hip turn sway: 20.9°
Flinch received: 0.31x

Fire rate and ammo

Fire rateFrom Activision: 150 rpm
Magazine sizeFrom Activision: 6 rounds
Total roundsRounds carried in total, the loaded magazine includedFrom Activision: 30 rounds
Headshot multiplier: 1.00x

Attachments change these values. The class builder shows the result for a whole build.

Rezi 12 attachments

The Rezi 12 accepts 11 attachment types. Gunsmith allows up to 5 standard attachments on one weapon, plus its Apex Attachment.

Optic
Bolt
Muzzle
Guard
Barrel
Underbarrel
Rear Grip
Comb
Stock
Laser
Ammunition

Community-reported61 attachments listed by community sites, by type below; community-reported and unverified.

How this is sourced

Activision has not published the names or effects of the individual attachments, so there is no official list to check these against. They are grouped by type in Gunsmith order. Where CODMunity lists a stat change for an attachment on this weapon, the biggest changes are printed under it as a percentage of the base value; "No stat change reported" means the source lists none, not that there is none. Where the names come from.

Optic (19)0 with a reported stat change

Bruen THRM-60 Optic2.1x thermal opticNo stat change reported
Corio Bisect4x ScopeNo stat change reported
Cronen R8084x ScopeNo stat change reported
FJX 708 PROReflexNo stat change reported
GL K2304x ScopeNo stat change reported
IOTA-DMini reflex opticNo stat change reported
KV Corsac HoloHoloNo stat change reported
Schlager Night View Pro4x ScopeNo stat change reported
Slimline EliteMini ReflexNo stat change reported
SZ Echelon HoloHoloNo stat change reported
SZ Helios HoloHoloNo stat change reported
SZ Lonewolf Flip4x ScopeNo stat change reported
SZ Lonewolf HoloHoloNo stat change reported
SZ Micro D-3ReflexNo stat change reported
SZ Prima-4 DotLow-profile dot opticNo stat change reported
SZ SRE-7ReflexNo stat change reported
VLK TrimmerReflexNo stat change reported
ZLR SwordfishShotgun ScopeNo stat change reported
ZLR Type CMini ReflexNo stat change reported

Muzzle (9)7 with a reported stat change

EXP Firelite 12Heavy Silencer
- Bullet velocity +16% (better)
- ADS speed +9% (worse)
- Vertical recoil −6% (better)
- Horizontal recoil −6% (better)
FTAC LTS-707Light SilencerNo stat change reported
GW Slashtop V1Horizontal Comp
- Horizontal recoil −25% (better)
- ADS speed +4% (worse)
Haebang Bulsae-10Choke
- ADS speed +4% (worse)
Mugi-X VIR0BreacherNo stat change reported
SA One TapFlash Hider
- Vertical recoil −3% (better)
- Horizontal recoil −3% (better)
Sakin Omega 13Tactical Silencer
- ADS speed +5% (worse)
TA Ribcage Gen.1Balanced Comp
- Vertical recoil −8% (better)
- Horizontal recoil −8% (better)
- ADS speed +4% (worse)
XRK Spine RipperVertical Comp
- Vertical recoil −13% (better)
- ADS speed +4% (worse)

Barrel (4)4 with a reported stat change

Haebang 635R-7Long Barrel
- Magazine size +33% (better)
- Reload time +27% (worse)
- Bullet velocity +20% (better)
- ADS speed +9% (worse)
ZLR 12GA Ported 21"Heavy Barrel
- Magazine size +67% (better)
- Reload time +54% (worse)
- Vertical recoil −14% (better)
- Horizontal recoil −14% (better)
ZLR L48 Siege 13"Short Barrel
- Bullet velocity −14% (worse)
- Vertical recoil +10% (worse)
- Horizontal recoil +10% (worse)
- ADS speed −8% (better)
ZLR Rogue 90 25"Heavy Long Barrel
- Magazine size +67% (better)
- Reload time +54% (worse)
- Bullet velocity +13% (better)
- Vertical recoil −10% (better)

Underbarrel (4)4 with a reported stat change

FSS Fireline GripAngled grip
- Pro: Firing stability
- Con: Aiming speed
- Sprint to fire speed +9% (worse)
- Vertical recoil −9% (better)
- Horizontal recoil −9% (better)
- ADS speed +6% (worse)
FSS TAC90 GripAngled Short Grip
- ADS idle sway −50% (better)
- ADS gun bob −50% (better)
GW Domi-9Vertical Short Grip
- Hip idle sway −50% (better)
- Hip gun bob −40% (better)
MIRE-50 Tac GripVertical Grip
- ADS speed +5% (worse)
- Movement speed +4% (better)

Rear Grip (4)4 with a reported stat change

Bruen R12-SHTactical Grip
- ADS speed −5% (better)
- Vertical recoil +3% (worse)
- Horizontal recoil +3% (worse)
POM12-F GripAim Grip
- Flinch received −50% (better)
- ADS idle sway −10% (better)
- Hip idle sway −5% (better)
SA B40 GripAssault Grip
- Vertical recoil −6% (better)
- Horizontal recoil −6% (better)
- Sprint to fire speed +5% (worse)
- ADS speed +4% (worse)
XRK Bygone-39Skeleton Grip
- ADS speed −9% (better)
- Sprint to fire speed −8% (better)
- Vertical recoil +6% (worse)
- Horizontal recoil +6% (worse)

Stock (4)4 with a reported stat change

EXP FR67-U0Heavy Stock
- ADS movement speed −2% (worse)
No Stock
- Vertical recoil +30% (worse)
- Horizontal recoil +30% (worse)
- ADS speed −17% (better)
- ADS movement speed +12% (better)
TV XR-14 KiloLight Rifle Stock
- ADS movement speed +6% (better)
- Movement speed +3% (better)
- Sprint speed +2% (better)
ZLR TAC12 ProTactical Stock
- ADS speed −8% (better)
- Vertical recoil +5% (worse)
- Horizontal recoil +5% (worse)

Laser (7)7 with a reported stat change

Expedite 21 CFRCanted Laser
- ADS gun bob +30% (worse)
Expedite Squad-304Canted Laser
- ADS gun bob +30% (worse)
- Hip gun bob −15% (better)
FJX EVR7Flashlight
- Movement speed +2% (better)
- ADS movement speed +2% (better)
Pulse-MW LaserLaser sight; the beam is not visible to enemies
- Pro: Hip-fire accuracy
- Pro: Hip recoil control
- Pro: Hip gun kick
- Hip idle sway −7% (better)
- Hip gun bob −7% (better)
QFL-S4.5Laser sight
- Pro: Sprint-to-fire speed
- Pro: Hip recoil control
- Pro: Hip gun kick
- Pro: Hip-fire accuracy
- Con: Beam is visible to enemies at the hip
- Sprint to fire speed −17% (better)
Schlager VISIV-5Laser sight
- Pro: Sprint-to-fire speed
- Pro: Aim-down-sight speed
- Con: Beam is visible to enemies while aiming
- Sprint to fire speed −17% (better)
- ADS speed −8% (better)
XRK Clutch-LSLaser sight; the beam is not visible to enemies
- Pro: Aim-down-sight speed
- ADS speed −4% (better)

Ammunition (1)1 with a reported stat change

12 Gauge Slug
- Bullet velocity −29% (worse)

Comb (3)3 with a reported stat change

Bryson SidewinderAmmo Comb
- ADS movement speed +4% (better)
LM Stock SleeveErgonomic Comb
- ADS movement speed −2% (worse)
Sakin V14 TacticalHeavy Comb
- Vertical recoil −7% (better)
- Horizontal recoil −7% (better)
- Sprint to fire speed +5% (worse)
- ADS speed +4% (worse)

Bolt (3)1 with a reported stat change

U12G Match 9Heavy Bolt
- Fire rate −14% (worse)
XRK Quad-80Speed BoltNo stat change reported
ZLR Competition-B6Light BoltNo stat change reported

Guard (3)0 with a reported stat change

Demo Service-12GLight GuardNo stat change reported
Rushline L-Watt20Tactical GuardNo stat change reported
XRK Warlord 700Heavy GuardNo stat change reported

Rezi 12 Enforcer Apex Attachment

Enables pump-action cycling and adds a side-saddle of hot-loaded explosive slugs.

Unlock

Fully level the Rezi 12: 60 weapon levels.

Blocks

No attachment types. Activision lists none.

Reported stat changes

Fire rate −50% (worse)

Community-reportedCODMunity; unverified.

Slot use

None. Apex Attachments are equipped outside the standard attachment slots.

See all 28 Apex Attachments

How to unlock the Rezi 12

Reach Player Level 4. Player Level runs from 1 to 55. XP from Multiplayer and DMZ counts toward it, and Warzone XP does from Season 1. Create-a-Class opens at Level 4; before that you deploy with premade default loadouts. The Rezi 12 Enforcer needs a separate grind: level the Rezi 12 itself through all 60 weapon levels.

Frequently asked questions

What is the Rezi 12's fire rate in MW4?

150 RPM. That ranks #1 of 2 shotguns by fire rate. The magazine holds 6 rounds and the weapon carries 24 in reserve.

When do you unlock the Rezi 12 in MW4?

At Player Level 4. Create-a-Class opens at Player Level 4, so this weapon is available as soon as you can build a class.

What does the Rezi 12 Enforcer Apex Attachment do?

Enables pump-action cycling and adds a side-saddle of hot-loaded explosive slugs. Activision lists no blocked attachment types for it. It unlocks by fully levelling the Rezi 12 (60 weapon levels).

How many attachments can the Rezi 12 use?

Up to 5 standard attachments, chosen from 11 attachment types (Optic, Bolt, Muzzle, Guard, Barrel, Underbarrel, Rear Grip, Comb, Stock, Laser, and Ammunition), plus the Rezi 12 Enforcer Apex Attachment, which does not use one of the 5 slots.

Which attachments are reported for the Rezi 12?

Activision has not published the attachment list, and it says there are more than 500. Community sites report 61 attachments for the Rezi 12, community-reported and unverified: 19 optic, 9 muzzle, 4 barrel, 4 underbarrel, 4 rear grip, 4 stock, 7 laser, 1 ammunition, 3 comb, 3 bolt, and 3 guard. The attachments section of this page lists them by type.

Other shotguns

Warlord105 RPM · 14/42 · Lv 32

Sources: Ready for Launch: All Modern Warfare 4 Operators, Weapons, Equipment, and Multiplayer Create-a-Class Features (October 19, 2026); Ready for Launch: Modern Warfare 4 Progression and Prestige (October 19, 2026). Attachment names, pictures and notes are community-reported; see Data and assumptions. Updated October 24, 2026.