Modern Warfare 3 has hundreds of attachments (with many being virtual lookalikes that essentially do the same thing slightly differently), which makes building guns an incredibly confusing process! Looking up class setups online can be clouded by tons of clickbait and low-effort junk, so if you're looking for highly researched and performance-tested class setups from an actual Call of Duty expert, you are in the right place! In this guide, we'll take a look at the best loadout and attachments for the FR 5.56 on 6v6 maps.
Best FR 5.56 Build & Attachments
The FR 5.56's true Damage Range is not 38.1 meters, but rather 48.3 as long as you hit at least 2 shots to center mass - a very forgiving damage profile. Since we have a lot of range to play with, the first order of business is converting a small amount of that into Firing Aim Stability (FAS) via the Echoline GS-X, and further converting more into extra Recoil Control via the 5.56 Low-Grain Rounds, resulting in a still-strong 36.1-meter Damage Range.
Since the FR 5.56 has a very poor attachment set that doesn't mesh well with its needs, the available options to add Aiming Idle Sway (AIS) and even simple Recoil Control are very sparse, with many options packing heavy penalties; that's why we have to dip into our Damage Range heavily just to get +FAS and Recoil Control. With both the Suppressor and Underbarrel, we pack a very nice +2/+2 to both FAS and AIS, so both of those burst necessities are covered. The 45-Round Magazine is practically necessitated by the meager 25-round base capacity, so the mobility drawbacks of the extended magazine are very carefully balanced around.
In closing, we have very generously improved Recoil Control and tightened bursts while still meeting the 100% Range requirement for 6v6 maps, and while 311ms Aim-Down-Sights (ADS) feels slow compared to every other option presented here, make no mistake - it's still very good for an AR and a dramatic improvement over any other blend of recoil attachments.
- Muzzle: Echoline GS-X
- Optic: Mk. 3 Reflector
- Magazine: 45-Round Magazine
- Ammunition: 5.56 NATO Low Grain Rounds
- Underbarrel: Bruen Heavy Support Grip
![[6v6] [AR] 06 FR 5.56.png](https://static.fanbyte.com/uploads/2024/02/06%20FR%205.56.png)
| Base | New | Base | New | ||
|---|---|---|---|---|---|
Range | 48.3 m | 36.1 m | Total Recoil | 64.40 | 58.55 |
ADS | 260 ms | 311 ms | FAS / AIS** | 0 / 0 | +2 / +2 |
S2F* | 231 ms | 233 ms | Movement | 4.60 mph | 4.29 mph |
Strafe | 2.70 m/s | 2.45 m/s | Sprint | 5.50 mph | 5.25 mph |
*Sprint to Fire; **Firing Aim Stability & Aiming Idle Sway
Our Testing Process: What does "Mathematically Optimized" mean?
It means that I have personally conducted over 30 hours of dedicated testing across the entire MW2 & 3 attachment set, endlessly consulted high-quality external resources and databases, and tirelessly tested performance across separate attachment combinations to produce what I believe to be the optimal build of a weapon for a specific purpose. Weapons are carefully crafted considering every possible detail - attempting to deliver the mathematically best possible performance in every category - mobility, handling, recoil, range, and accuracy.
With my builds, I believe you should see creative, never-before-seen uses of attachments that create incredible weapons. Do keep in mind that these weapons will not do the work for you - while they have all been precision-crafted to reduce horizontal recoil as much as possible, some of them still have quite noticeable vertical recoil, and it is on you to manage that vertical recoil correctly. I sincerely hope you enjoy reading about this build and every other build I have to offer on Fanbyte!
DISCLAIMER: If you test these in the Firing Range, please note that the Firing Range is currently glitched and shows more visual recoil and different damage performance than actually experienced in-game; it is best that you test these in a custom match or online.
