R2DA Wiki
R2DA Wiki

"I don't need a rifle made by commies, I've got my beautiful assault rifle of FREEDOM! I will do what's right and what's not for the greater good, no one will hold me back."


The M16A1 is an all-round decent weapon. Good damage, nice range and accuracy that can surprise you at times. It's a steal for what it's worth in the shop. The only thing worth mentioning is the small ammo pool. If not used responsibly, you will constantly find yourself using your secondary. Armors that supply extra magazines are recommended, as well as the Barrel Mag attachment.

Background Story

The military's choice to supply R-Brain Hardwork with M16A1 blueprints and parts seemed impractical and silly.

As iconic the M16A1 is, the rifle design is incredibly outdated (considering that it was designed more than 60 years ago), worsened by R-Brain Hardwork's incredibly odd choice in replacing the original full-auto firing mode with... burst fire. Funnily enough, the original M16 variant used during the early stages of the Vietnam War had the aforementioned firing mode.

Why the M16A1 specifically? Why not the more modernised M16A3 or M16A4 rifles the military had (or anything else, actually)? Well, it's too late to replace these now. Almost every survivor in the world has these old "space-age" rifles. Might as well give survivors the goddamn Chauchat LMG next time.

Speaking of the firing mode situation, the M16A1 was tested with the Automatic Firing mode, though R-Brain Hardwork didn't like it so they just reverted it to burst.

At least it doesn't jam like the previous M16 rifle.


  • Switch to semi-firing mode to conserve ammunition when engaging normal zombies.
    • Semi-firing mode is more accurate than burst and, in the long run, saves you more ammo.
    • If you have a quick trigger finger, crouch and ADS for the best results.
    • Press "V" to change firing modes.
  • Engaging a Brute with this weapon at medium to far range is encouraged due to its high DPS, and a surprising amount of accuracy, allowing a great number of headshots dealing double damage.
  • It's highly recommended to equip the Bulldozer I when using this weapon, as in heated situations you'll burn through ammunition quickly. The extra mags could very well save you.
  • It is recommended for the user to space out their bursting in order to prevent losing accuracy than to spray and pray.
  • Bursting while ADS'ing requires vertical compensation.
  • It is best to use burst mode on a big horde of zombies, as you can wipe out most of the zombies if you have the ammo.
  • Take advantage of the M16A1's burst and high damage to quickly dispatch foes whenever jumping out of cover.
    • In Team Deathmatch, a well-aimed burst will quickly dispatch your opponents.
  • It is recommended to buy the Barrel Mag as soon as possible due to the fact there are no drawbacks to it.
  • You can combine this gun with the M93R, quickly switching between the two weapons to quickly bring down a Brute.
    • However, you may run out of ammo doing so.


  • High Rate of Fire
  • High Total Damage
  • Low Ranked


  • Slow Reload



  • v0.7.0
    • Price changed from 26,000$ to 18,000$.
  • v0.7.8
    • Converted from CSG to mesh.
  • v0.8.0
    • Accuracy changed from 85 to 95.
  • v1.0.7
    • Price changed from 18,000$ to 15,000$.
  • v1.1.3
    • Price changed from 15,000$ to 13,000$.
    • Rank changed from 10 to 8.
  • v1.1.8
    • Ammo changed from 15/2 to 21/2.
  • v1.2.0
    • Accuracy changed from 95 to 35.
  • v1.2.4
    • Accuracy changed from 35 to 47.
  • v1.3.9
    • Accuracy changed from 47 to 55.
  • v1.4.0
    • Rank changed from 8 to 10.
  • v1.4.4
    • Accuracy changed from 55 to 95.
  • v1.5.3
    • Accuracy changed from 95 to 115.

  • This was the first assault rifle to be ever added in R2DA.
  • This is considered the first returning weapon from R2D, so long you aren't counting the Colt Python as a reincarnation of the Revolver.
    • The M16 in R2D was exclusively burst fire, but this iteration has semi and burst-fire.
  • In Debug, this used to cost 28,000$.
  • Previously, to own the M16A1, you had to own both the M93R and the Skorpion.
  • One of the six weapons to be converted from CSG.
  • The M1A1 Thompson shares the same reload animation, but it is slightly slower than what is shown on the M16A1.
  • In Debug v1.3.4, this used to have an automatic firing mode but was removed for the main game, shown here.
    • However, people found ways to use the M16A1 to mimic a automatic use with auto-clickers because of the semi-automatic didn't have a proper fire-rate limit.