SIG P320 – 419 Compensator – Dual Port 1/2x28 – Agency/Syndicate Slides
PLEASE DOUBLE CHECK DETAILS AND FITMENT BEFORE PURCHASE.
The Agency Arms 419 Compensator is a dual-port compensator for SIG Sauer P320 builds using compatible Agency Arms or Syndicate slides. This is the black matte version with two vertical ports, a front sight hole, and included installation hardware.
Do not treat this as a universal P320 compensator. This SKU is specifically tied to Agency Arms / Syndicate P320 slide fitment. If the customer has an OEM P320 slide, they need to verify whether they need the separate OEM-slide version instead. Wrong slide, wrong comp, bad day. Simple as that.
Fitment
- Fits SIG Sauer P320 builds using compatible Agency Arms or Syndicate P320 slides.
- Thread pitch: 1/2x28 RH.
- Built for P320 9mm threaded barrel setups when the barrel protrusion and slide configuration are correct.
- Overall barrel protrusion should measure 0.819 inches ± 0.005 inches for optimal fitment.
Does NOT fit
- Not a universal fit for every SIG P320 slide.
- Not the OEM-slide version.
- Not compatible with conversion barrels per retailer/manufacturer-style listing language.
- Does not fit non-threaded barrels.
- Does not fit barrels with a thread pitch other than 1/2x28 RH.
What it does
The 419 Compensator redirects gas upward through its dual vertical port design to help reduce muzzle rise and keep the pistol tracking flatter during follow-up shots.
Why it’s worth it
On a properly matched P320 build, a compensator can make the gun feel faster and more settled under recoil. But this is build-specific hardware, not a magic charm. Slide fit, barrel protrusion, thread pitch, recoil spring weight, and ammo all matter. That is where grown-man builds separate themselves from “I saw it on Instagram” builds.
Specs
- Brand: Agency Arms
- Product type: Pistol compensator
- Platform: SIG Sauer P320
- Fitment focus: Agency Arms / Syndicate P320 slides
- Port style: Dual Port
- Ports: 2 vertical ports
- Thread pitch: 1/2x28 RH
- Finish: Matte Black
- Front sight hole: Yes
- Included hardware: 2 set screws, Allen wrench, and vial of thread locker / Rocksett style thread locker
What’s included
- Agency Arms 419 Dual Port Compensator
- Two set screws
- Allen wrench
- Vial of thread locker
Tools needed
Basic installation tools are included, but the installer still needs to verify barrel protrusion, thread pitch, alignment, and final fitment. A clean install matters here.
Install notes
Install only on an unloaded firearm. Confirm the compensator is aligned properly before firing. After installation, test the pistol with the intended ammo and recoil spring setup. Compensated pistols can be ammo-sensitive, especially with lighter loads or mismatched spring weights.
Verify before you buy
Verify that your P320 build uses a compatible Agency Arms or Syndicate slide, a 1/2x28 RH threaded barrel, and proper barrel protrusion of 0.819 inches ± 0.005 inches. If your setup uses an OEM P320 slide, verify whether you need the separate OEM-slide version before ordering.
⚠ Trademark & Compatibility Disclaimer
IronKells Armory LLC is not affiliated with, endorsed by, or sponsored by any manufacturer mentioned. All trademarks are the property of their respective owners and are used only to identify compatibility or fitment.
⚠ Install & Compatibility Disclaimer
Installation should be performed by a qualified armorer or gunsmith. Improper installation, modification, or use may affect firearm safety and reliability. Buyer is responsible for verifying compatibility, performing proper function testing, and ensuring safe operation.
