Insurmountable - Legendary Sidearm

Insurmountable is a Sidearm Void Primary in Destiny 2. Review its base stats, perk pool, and masterwork options.

Weapon overview

Sidearm - Void - Primary - Precision Frame

Source: Random Perks: This item cannot be reacquired from Collections.

Mountains must be devoured one bite at a time.

This weapon's recoil pattern is more predictably vertical.

Arrowhead Brake
Lightly vented barrel.
• Greatly controls recoil
• Increases handling speed
Chambered Compensator
Stable barrel attachment.
• Increases stability
• Moderately controls recoil
• Slightly decreases handling speed
Corkscrew Rifling
Balanced barrel.
• Slightly increases range and stability
• Slightly increases handling speed
Extended Barrel
Weighty barrel extension.
• Increases range
• Decreases handling speed
• Moderately controls recoil
Fluted Barrel
Ultra-light barrel.
• Greatly increases handling speed
• Slightly increases stability
Full Bore
Barrel optimized for distance.
• Greatly increases range
• Decreases stability
• Slightly decreases handling speed
Hammer-Forged Rifling
Durable ranged barrel.
• Increases range
Polygonal Rifling
Barrel optimized for recoil reduction.
• Increases stability
Smallbore
Dual strength barrel.
• Increases range
• Increases stability

Accurized Rounds
This weapon can fire longer distances.
• Increases range
Appended Mag
This weapon's magazine is built for higher capacity.
• Increases magazine size
Tactical Mag
This weapon has multiple tactical improvements.
• Slightly increases stability
• Increases reload speed
• Slightly increases magazine size
Extended Mag
This weapon has a greatly increased magazine size, but reloads much slower.
• Greatly increases magazine size
• Greatly decreases reload speed
• Increases airborne effectiveness
Steady Rounds
This magazine is optimized for recoil control.
• Greatly increases stability
• Slightly decreases range
• Increases airborne effectiveness
Alloy Magazine
Faster reload when the magazine is nearly empty.
Flared Magwell
Optimized for fast reloading.
• Slightly increases stability
• Greatly increases reload speed

Lone Wolf
Slightly improves aim assist, aim down sights speed, and airborne effectiveness. Increases these effects when there are no nearby allies.
Repulsor Brace
Defeating a Void-debuffed target grants an overshield.
To the Pain
While this weapon is equipped, taking damage increases handling and aim assist until the weapon is stowed.

Taking more damage increases the effect.
Threat Detector
Increased reload, stability, and handling when enemies are in close proximity.
Attrition Orbs
Dealing sustained damage creates an Orb of Power.
Demolitionist
Kills with this weapon generate grenade energy. Activating your grenade ability reloads this weapon from reserves.
Air Trigger
Increased ammo generation. When airborne, accuracy and reload speed are increased but target acquisition is decreased.

Destabilizing Rounds
Defeating a target creates a Void burst; hitting other targets with this burst makes them volatile and grants you Volatile Rounds for a short duration.
Desperate Measures
Weapon final blows grant bonus damage. Melee and grenade final blows grant a larger damage bonus that can stack.
One for All
Hitting three separate targets increases damage for a moderate duration.
Surrounded
This weapon gains bonus damage when three or more enemies are in close proximity.
Rampage
Kills with this weapon temporarily grant increased damage. Stacks 3x.
Closing Time
Improves range, accuracy, and handling as the magazine gets lower.
Harmony
Final blows with other weapons improve this weapon's damage and performance for a short duration.

Dark Ether Reaper
Final blows with this weapon periodically spawn Dark Ether charges.

Charges can be detonated early with weapons fire or by coming into contact with them. Doing so refills this weapon from reserves.