10.2" EX-3 Heavy Barrel
Barrel
Unlocked at Weapon Level 21.
Mid-range barrel: balanced handling and range.
Weapons / SMG
Close range at LV 41: 5 of 5 final

Waiting for a verified source.
The official patch notes haven't changed this weapon yet.
We have ready builds for the CARBON 57: close range, long range. Pick a style and your weapon level in the lab above and we equip the right parts for that level, with stand-ins until the parts unlock.
The CARBON 57 maxes out at weapon level 41. After that you can enter weapon prestige and unlock its prestige attachment.
We list 45 compatible attachments for the CARBON 57 across 9 slots, each with its unlock level and what it does.
The prestige attachment is the MFS Renown Plus Extended Mag. It unlocks after you reach max level and enter weapon prestige.
In the same class: CBRS-3, DRAVEC 45, Gremlin. Each has its own page with level-by-level builds.
Barrel
Unlocked at Weapon Level 21.
Mid-range barrel: balanced handling and range.
Barrel
Unlocked at Weapon Level 32.
Hybrid barrel: faster bullets and more range, slightly slower aiming.
Barrel
Unlocked at Weapon Level 27.
Long barrel: longer damage range, slower aiming.
Exact image unavailable — Fire Mods
SPECIAL CODE category presentation — not the exact attachment geometry.
Fire Mods
Unlocked at Weapon Level 39.
FMJ rounds: bullet velocity and range.
Exact image unavailable — Fire Mods
SPECIAL CODE category presentation — not the exact attachment geometry.
Fire Mods
Unlocked at Weapon Level 9.
High-velocity ammo: faster bullets and more range.
Barrel
Unlocked at Weapon Level 4.
Control barrel: less recoil and faster bullets, slower handling.
Barrel
Unlocked at Weapon Level 13.
Short barrel: faster aiming and movement, shorter damage range.
Exact image unavailable — Fire Mods
SPECIAL CODE category presentation — not the exact attachment geometry.
Fire Mods
Unlocked at Weapon Level 3.
Recoil springs: less recoil.
Exact image unavailable — Rear Grip
SPECIAL CODE category presentation — not the exact attachment geometry.
Rear Grip
Unlocked at Weapon Level 8.
Quickdraw grip: faster aim-down-sights.
Exact image unavailable — Stock
SPECIAL CODE category presentation — not the exact attachment geometry.
Stock
Unlocked at Weapon Level 41.
Flinch stock: less aim flinch when you get hit.
Exact image unavailable — Magazine
SPECIAL CODE category presentation — not the exact attachment geometry.
Magazine
Unlocked at Weapon Level 11.
Extended mag: more ammo per magazine, slower handling.

SPECIAL CODE
Magazine
Unlocked via Weekly Challenge Reward.
No verified effect summary is published for this attachment.
Exact image unavailable — Magazine
SPECIAL CODE category presentation — not the exact attachment geometry.
Magazine
Unlocked at Weapon Level 20.
Fast mag: faster reload.
Exact image unavailable — Rear Grip
SPECIAL CODE category presentation — not the exact attachment geometry.
Rear Grip
Unlocked at Weapon Level 23.
Stabilization grip: less horizontal recoil, slightly slower aiming.
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
Optic
Unlocked at Weapon Level 14.
Optic: a sight for clearer aiming.
Exact image unavailable — Laser
SPECIAL CODE category presentation — not the exact attachment geometry.
Laser
Unlocked at Weapon Level 10.
Steady laser: steadier aim while aiming down sights.
Exact image unavailable — Laser
SPECIAL CODE category presentation — not the exact attachment geometry.
Laser
Unlocked at Weapon Level 17.
Steady laser: steadier aim while aiming down sights.
Exact image unavailable — Fire Mods
SPECIAL CODE category presentation — not the exact attachment geometry.
Fire Mods
Unlocked at Weapon Level 31.
Eliminate all Horizontal Recoil while firing with an improved fire rate at the expense of Muzzl…
Exact image unavailable — Rear Grip
SPECIAL CODE category presentation — not the exact attachment geometry.
Rear Grip
Unlocked at Weapon Level 35.
Accuracy grip: less vertical recoil.
Exact image unavailable — Stock
SPECIAL CODE category presentation — not the exact attachment geometry.
Stock
Unlocked at Weapon Level 26.
Mobility stock: faster movement and sprint.
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
Optic
Unlocked at Weapon Level 24.
Optic: a sight for clearer aiming.
Exact image unavailable — Stock
SPECIAL CODE category presentation — not the exact attachment geometry.
Stock
Unlocked at Weapon Level 37.
Aim-walk stock: faster movement while aiming.
Exact image unavailable — Stock
SPECIAL CODE category presentation — not the exact attachment geometry.
Stock
Unlocked at Weapon Level 19.
Control stock: less recoil, slower handling.
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
Muzzle
Unlocked at Weapon Level 25.
Muzzle brake: less gun kick and vertical recoil.
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
Muzzle
Unlocked at Weapon Level 2.
Compensator: less vertical recoil.
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
Muzzle
Unlocked at Weapon Level 15.
Suppressor: keeps your shots off the minimap.
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
Muzzle
Unlocked at Weapon Level 40.
Mobility muzzle: better hip-fire and movement speed.
Underbarrel
Unlocked at Weapon Level 30.
Recoil foregrip: less recoil.

SPECIAL CODE
Muzzle
Unlocked from the Season 4 Battle Pass.
No verified effect summary is published for this attachment.
Exact image unavailable — Laser
SPECIAL CODE category presentation — not the exact attachment geometry.
Laser
Unlocked at Weapon Level 29.
Handling laser: faster aiming and sprint-to-fire (visible laser).
Exact image unavailable — Optic
SPECIAL CODE category presentation — not the exact attachment geometry.
Optic
Unlocked at Weapon Level 33.
Named in Season 05 Multiplayer general attachment adjustments for custom reticle visibility.
Exact image unavailable — Magazine
SPECIAL CODE category presentation — not the exact attachment geometry.
Magazine
Prestige
Improved Extended Mag that increases ammo capacity and drastically improves base, aiming, and s…
Exact image unavailable — Magazine
SPECIAL CODE category presentation — not the exact attachment geometry.
Magazine
Prestige
Extended mag: more ammo per magazine, slower handling.
Exact image unavailable — Muzzle
SPECIAL CODE category presentation — not the exact attachment geometry.
Muzzle
Unlocked at Weapon Level 36.
Firepower suppressor: off the minimap, faster bullets and more range, slower aiming.
Exact image unavailable — Stock
SPECIAL CODE category presentation — not the exact attachment geometry.
Stock
Unlocked at Weapon Level 12.
Tactical stock: better hip-fire and tactical-stance accuracy.
Exact image unavailable — Rear Grip
SPECIAL CODE category presentation — not the exact attachment geometry.
Rear Grip
Unlocked at Weapon Level 28.
Quickdraw grip: faster aim-down-sights.
Underbarrel
Unlocked at Weapon Level 22.
Mobility foregrip: faster movement.

SPECIAL CODE
Muzzle
Unlocked via Weekly Challenge Reward.
Recoil suppressor: off the minimap with less recoil.
Exact image unavailable — Laser
SPECIAL CODE category presentation — not the exact attachment geometry.
Laser
Unlocked at Weapon Level 6.
Tactical laser: faster aiming in tactical stance (visible laser).
Exact image unavailable — Rear Grip
SPECIAL CODE category presentation — not the exact attachment geometry.
Rear Grip
Unlocked at Weapon Level 18.
Sprint-to-fire grip: shoot sooner after sprinting.
Underbarrel
Unlocked at Weapon Level 7.
Steady foregrip: steadier aim and less sway.
Underbarrel
Unlocked at Weapon Level 38.
Mobile recoil foregrip: faster movement with some recoil control.

SPECIAL CODE
Underbarrel
Unlocked from the Season 3 Battle Pass.
No verified effect summary is published for this attachment.
Exact image unavailable — Laser
SPECIAL CODE category presentation — not the exact attachment geometry.
Laser
Unlocked at Weapon Level 34.
Steady laser: steadier aim while aiming down sights.
Underbarrel
Unlocked at Weapon Level 16.
Steady foregrip: steadier aim and less sway.