The B36A4 (G36) is the first assault rifle that really feels built for Battlefield 6’s mid‑range fights. It hits a steady 720 RPM, tracks well across sightlines, and—once you strip out the shaky stock parts—becomes a reliable pick on any large map. Out of the box, it’s jumpy and oddly imprecise, so the goal with every build below is the same: flatten the recoil, tighten ADS accuracy, and raise muzzle velocity so your shots connect when it matters.

Best B36A4 mid‑range build (balanced, all‑purpose)

This setup leans into the rifle’s strengths and fixes its stock weaknesses. It’s the “one loadout for most modes” option.

Slot Attachment What it does
Muzzle Double‑Port Brake Reduces overall recoil without adding ADS bloom; keeps burst fire consistent at range.
Barrel Extended 510MM Fluted Boosts bullet velocity to 975 m/s and improves ADS speed, making long‑range tracking noticeably easier.
Underbarrel Ribbed Stubby Significantly cuts recoil and speeds ADS with no ADS‑accuracy penalty—rare on grips.
Magazine 36RND Fast Magazine Extra bullets with a quick reload; the B36A4’s lower rate of fire makes this capacity feel comfortable.
Ammunition Standard Low cost, consistent ballistics for mid‑range fights.
Optic Mini Flex 1.00x or CCO 2.00x Clean 1x for tight flanks and mixed ranges; 2x for open sightlines without over‑magnifying.
Accessory 50MW Blue Improves hipfire and ADS accuracy—an unusually strong combination on an AR built for distance.

Why this works: the Fluted barrel’s velocity jump pairs with the B36A4’s steady cadence, so you can burst at 40–60 meters without fighting random spread. The Ribbed Stubby is the backbone—because it doesn’t hurt ADS accuracy, it plays well with any optic, and keeps the rifle “true” in mid‑long bursts. The Blue laser is a late unlock but worth it; until then, run a simpler laser or a larger magazine if you’re frequently trading in open lanes.

Low‑level B36A4 build (early Mastery unlocks)

If you’re still climbing early weapon Mastery and don’t have the pricier parts yet, start here. Every item below is available by the time you reach roughly single‑digit Mastery.

Slot Attachment What it does
Muzzle Linear Comp Converter Channels recoil into a more vertical pattern so you can counter with a simple mouse pull‑down.
Barrel 510MM Fluted Extended Early velocity and ADS gains that make the rifle feel “stable” sooner than stock.
Underbarrel 6H64 Vertical Basic vertical control that smooths the B36A4’s climb in short bursts.
Magazine 30RND Fast Mag Fast reloads for frequent engagements while leveling.
Ammunition Standard FMJ Simple and consistent while you build out the core.
Accessory Flashlight Filler pick until lasers or other accessories unlock.
Optic Mini Flex 1.00x Clean sight picture that keeps the gun nimble.

Leveling path: swap 6H64 Vertical to Ribbed Stubby when available. If you need more control before then, the Alloy Vertical is a safe interim pick. A Compensated Brake at mid‑Mastery is a solid alternative muzzle if Linear Comp isn’t landing for you.

High‑level B36A4 build (precision‑first, Mastery 27+)

Once you unlock the heavier components and premium grips, this build pushes the rifle into “hold the angle” territory with minimal fuss.

Slot Attachment What it does
Muzzle Linear Comp Converter Keeps recoil vertical so sustained tracking feels predictable.
Barrel 480MM MG Heavy Heavier profile that further stabilizes shots at distance.
Underbarrel Classic Vertical Big recoil reduction; trades a bit of ADS and movement for laser‑like control.
Magazine 40RND Fast Mag Extra headroom for multi‑kill holds before a reload.
Ammunition Standard FMJ Reliable baseline ballistics for ranged exchanges.
Optic Mini Flex 1.00x Swap to a 2.00x if you’re anchoring long lanes.
Accessory 50MW Blue Late‑game standout that tightens both hipfire and ADS accuracy.

Variant: if you prefer a lighter feel while aiming, Polymer Case ammo is a credible swap for Standard—its ADS movement speed bonus complements this precision‑forward setup without undoing your recoil work.

Close‑quarters variant (CQB maps and objective pushes)

When the fight compresses into buildings and alleys, you can trim the rifle into something closer to an SMG without losing too much control.

Slot Attachment What it does
Muzzle Flash Hider Conceals muzzle flash; prioritize stealth over raw control in tight fights.
Barrel 391MM CQB Faster ADS and better hipfire at the cost of velocity.
Underbarrel Low‑Profile Stubby Recoil reduction with snappier ADS; a mobile alternative to vertical grips.
Accessory 5mw Green Improves hipfire for slide‑peek and doorway duels.
Magazine 20 Fast SMG‑like reload cadence for constant pressure; accept the smaller pool.
Ammunition Standard Keep costs and handling predictable.
Tip: on maps with mixed sightlines, pair this variant with a more flexible optic (a clean 1x) and be ready to swap back to a longer barrel between rounds.

Optics and handling: what to expect

  • Optics: a clean 1.00x is the safest default for most modes. Swap to a 2.00x on open maps where you’re locking down sightlines. The OSA‑7 1.00x is a popular alternative with a crisp reticle.
  • Recoil pattern: without help, the B36A4 kicks and can drift right in sustained fire. Linear comps make that recoil more vertical; vertical or stubby grips then simplify your counter‑pull to a steady downward correction.
  • Burst discipline: even with high‑end parts, two‑to‑four round bursts at mid range will outpace any attempt to mag‑dump at distance. Let the gun reset between bursts to keep Precision high.

Class synergy and secondary picks

  • Assault: faster draw and sprint‑to‑fire with assault rifles helps the B36A4’s slower base handling. It’s the most natural fit for this weapon.
  • Support/Engineer: the rifle’s stability translates well to defensive holds and utility‑focused roles; you’re not forced into Assault to make it shine.
  • Close‑quarters coverage: if you’re maining the mid‑range build on objective‑heavy maps, consider pairing with a shotgun in Assault for interior clears. Swap to the rifle the moment you step back into open ground.

Attachment effects at a glance

Slot Option Primary effect Trade‑off
Muzzle Double‑Port Brake Broad recoil reduction None to ADS accuracy
Muzzle Linear Comp (Converter) Turns recoil vertical Less horizontal damping vs heavy brakes
Muzzle Compensated Brake Strong control benefits No concealment
Muzzle Flash Hider Conceals flash/position Minimal recoil help
Barrel Extended 510MM Fluted Higher velocity, faster ADS Slight weight increase
Barrel 510MM DMR / 480MM MG Heavy Stability and range tracking Lower mobility
Barrel 391MM CQB Faster ADS, better hipfire Lower velocity
Underbarrel Ribbed Stubby Recoil down, faster ADS No accuracy penalty—a key advantage
Underbarrel Low‑Profile Stubby Recoil down, snappy ADS Less accurate while moving
Underbarrel Classic/6H64 Vertical Strong recoil control Hits ADS handling/movement (Classic)
Accessory 50MW Blue Hipfire and ADS accuracy up Late unlock
Accessory 5mw Green Hipfire accuracy up No ADS benefit
Magazine 30/36/40 Fast Faster reloads, capacity options Heavier mags cost more build points
Magazine 20 Fast Very fast reload Smallest capacity
Ammunition Standard / FMJ Consistent baseline None specific
Ammunition Polymer Case Faster movement while ADS Situational benefit
Optics Mini Flex 1.00x / OSA‑7 1.00x Clean 1x sight picture Limited reach
Optics CCO 2.00x Better for long lanes Harder up close

If you stick with the B36A4 through the early grind and prioritize recoil‑friendly parts, it pays you back with a predictable, mid‑range first‑pick. Start with the low‑level core, graduate to the balanced build, and slot in the Blue laser the moment it unlocks—at that point, you can hold angles confidently while still being quick enough to pivot between objectives.