The Herrington Arms HC320 Compensator is designed to work with Sig Sauer P320 series. It is made of high-quality 7075 aluminum and coated with either FDE Cerakote or Black Anodized finish to compliment your specific Sig P320 configuration. The HC320 will work with the stock springs provided your gun has gone through our recommended break in period of 500 rounds factory new ammunition is used with the threaded barrel you intend to use with the firearm before installing a compensator. Fits on 1/2-28 or M13.5x1 LH threaded barrels and most aftermarket barrels.
Specifications
Material : 7075 Aluminum
Finish : FDE Cerakote or Black Anodize finish
Compatibility : Full size P320’s, P320 X Compact, P320 Compact, P320 X Carry (with 1/2-28 or M13.5x1 LH threaded barrels)
Included : 5/64 Allen key, Steel replacement 8-32 set screw
Length : 1.125 inches long
Holster Compatibility : Will fit in most open bottom holsters. We use Sierra Defense, Tier 1 Concealed, and Safariland.
Highlights
- 3 port design to mitigate vertical and felt recoil
- Will fit in most open bottom holsters. We use Sierra Defense, Tier 1 Concealed, and Safariland.
- NOT COMPATIBLE WITH BAR-STO, KKM, OR EFK BARRELS!
- Works with Sig P320 9mm models
- With Legion models it may require a DPM spring kit to run 115 grain ammo!
- IF YOU HAVE AN ISSUE ASSEMBLYING WITH THE NEW P320 GUIDE ROD THAT HAS THE GOLD WASHER ON THE END, PLEASE SEND US AN EMAIL. WE HAVE A TECHNIQUE TO HELP ASSEMBLY.
- Blems are cosmetic ONLY. They will function as normal - May have nicks, dings, pitting, machining marks, chips, discoloration, etc.
AMMO DISCLAIMER: We DO NOT recommend using plated, bi-metal, or frangible ammo in ANY of our compensators. Doing so will void the warranty and we will not cover or replace the comp if there are any damages.
INSTALLATION INSTRUCTIONS
- Make sure all threads are clean of grease, carbon, and loctite. Wipe the threads down till they're clean. If the threads are not cleaned, the loctite will not set properly.
- Only use loctite 243 on the barrel AND set screw threads. Some versions of the blue Loctite are not very strong and will not hold up. Feel free to use a generous amount.
- Torque the set screws to no more than 18in/lbs for 8-32 set screws and no more than 11in/lbs for 6-32 set screws.
- Allow the loctite to set for 24-48 hours before using.
- Please be sure that the compensator is not touching the slide, frame, or guide rod as that can cause cycling issues.
Semi-Flush and Flush-Fit Builds
We often have customers reach out to us on how to do semi-flush builds with their 320 platforms. With the HC320 in particular, you can do a semi-flush AND flush-fit build, but we recommend using our HC320FL (for esthetic reasons) if you want to do a flush-fit build. Below we listed exactly what you need to do both builds!
Semi-Flush fit: Uses a Carry/X Carry 3.9in slide, 4.6in threaded barrel, 3.9in recoil assembly, whichever sig comp of your choice (usually an HC320 or HC320XL), and a full size frame.
Flush Fit: The flush fit build uses a X compact/subcompact 3.6" slide, 4.3" threaded barrel, 3.6" recoil assembly, HC320FL, and a full size frame.
