Muzzle Boost
Increases weapon fire rate by channeling gasses back into the weapon cycling it faster, at the cost of bullet accuracy.
The Muzzle Boost is a muzzle attachment in Rust that fits 37 weapons. It shortens the delay between shots by 10%, but widens the aim cone by 0.15° and adds 0.5° more spread to hip fire. You craft it at a Level 2 Workbench, and its blueprint costs 100 scrap to research.
About the Muzzle Boost
A delay 10% shorter between shots works out to 11% more shots per minute. The hip-fire change counts only when you shoot without aiming down the sights.
It has 100 condition of its own and loses some with every shot the weapon fires.
On the tech tree it sits behind 14 other unlocks: Flame Thrower, Catapult, Ballista, Battering Ram, Python Revolver, F1 Grenade and 8 more. In all, 23 loot sources drop it; the full list of where it drops gives the chance for each.
Muzzle Boost stats and effects
It takes the weapon's barrel slot, and a weapon carries only one barrel attachment at a time. Its percentage changes multiply with those of the other attachments on the same weapon, while its changes in degrees are added to theirs.
How to craft the Muzzle Boost
Crafting one takes 25 seconds at a Level 2 Workbench and costs 10 × High Quality Metal.
10 
How to get the Muzzle Boost blueprint
Research it for 100 scrap, or unlock it on the Level 2 tech tree for 15 Blueprint Pages in total.
1 Item 
100 Scrap Blueprint 100 
Node 
1 Blueprint Page Unlocked 15 How to repair the Muzzle Boost
A full repair at a Repair Bench costs 3 × High Quality Metal, and you need its blueprint.
×3 
50 Cal Turret → 
Abyss Assault Rifle → 
Assault Rifle → 
Bolt Action Rifle → 
Crystal Assault Rifle Diamond → 
Crystal Assault Rifle Emerald → 
Crystal Assault Rifle Pink Diamond → 
Crystal Assault Rifle Ruby → 
Crystal Assault Rifle Sapphire → 
Custom SMG → 
Dual 50 Cal Turret → 
Dual 50 Cal Turret → 
HMLMG → 
Handmade SMG → 
Ice Assault Rifle → 
Jungle Relic Assault Rifle → 
Krieg Shotgun → 
L96 Rifle → 
LR-300 Assault Rifle → 
M15 Semi-Automatic Pistol → 
M16A2 → 
M249 → 
M39 Rifle → 
M4 Shotgun → 
M92 Pistol → 
MP5A4 → 
Medieval Assault Rifle → 
Prototype 17 → 
Pump Shotgun → 
Revolver → 
SKS → 
Semi-Automatic Pistol → 
Semi-Automatic Rifle → 
Space LR-300 Assault Rifle → 
Spas-12 Shotgun → 
Thompson → 
Uzi → What the Muzzle Boost recycles into
A green recycler always gives back 5 × High Quality Metal for one.
×5 ×6 
×7 50% 
×4 Where to find the Muzzle Boost
Treasure Box has the best chance at 1.6%, followed by Locked Crate at 1.3% and Elite Crate at 0.78%.
Stats checked against the Rust game files on 13 November 2026.
