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Reviews & Ratings for Herrington Arms SIG Sauer P320 HC320 Pistol Compensator — 21 reviews

(21 reviews)
Herrington Arms SIG Sauer P320 HC320 Pistol Compensator
Herrington Arms SIG Sauer P320 HC320 Pistol Compensator
As Low As $91.49 Save Up to 13%
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Most Helpful Positive Review night and day difference
So i bought this for my p320 rxp I completely redid the gun i found it to be a little snappier than my glocks so i put this gun aside for awhile, i bought this an x5legion frame and a threaded barrel for a flush-ish mounted comp. I shot it over the weekend and it ran toe to toe with my 2011. I was v...
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Most Helpful Negative Review FDE does not match FDE on M17.
Unfortunately aesthetics failed here but have not gotten to the range yet to test performance yet. It would be great if it matched the M17 but the color is way off.
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Great Comp with easy mounting.

by GreyKnight, Verified Owner from NV, United States Written on January 23, 2026
I have several Herrington Arms comps for both Glocks and Sigs and think they are some of the best on the market for general / duty use.
These provide a factory / OEM look, simple mounting and noticeable reduction muzzle flip. They will not compete with high end Match focused comps or make your pistol shoot perfectly flat but they are a great middle ground and cannot be beat for the price. Manufacturing quality is fantastic. - Note: Be sure to use Loctite on the set screws for best results.
Pros:
  • Function and affordable
Cons:
  • None
Best Used for:
  • general / duty
Would recommend: Yes
Was it helpful to you? Yes | No
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SigM17 build

by Mr.sig, Verified Owner from NH, United States Written on November 27, 2025
Fits perfectly looks cool,works great,went on threaded barrel easily reduces recoil quite abit
Would recommend: Yes
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First comp wont be the last

by Mike V, Verified Owner from FL, United States Written on June 1, 2025
I was sceptical to think there would be a major difference when adding a compensator to my sig P320. But wow. This thing totally makes a difference. Super easy to install, i put it on a compact slide and a full size wilson combat frame. It sits about an 1/8 of an inch from the slide which is more than enough room for battery, and looks super slick how how the angled front glides down into the frame.
It wont be my last compensator from OP.
Pros:
  • Easy to install
  • Lighter recoil
  • Improve my shooting
Cons:
  • None for me
Would recommend: Yes
Was it helpful to you? Yes | No
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Great product

by G man, Verified Owner from AZ, United States Written on May 20, 2025
Great product. Easy to install and looks really awesome!
Would recommend: Yes
Was it helpful to you? Yes | No
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Great Comp

by Don, Verified Owner from DE, United States Written on April 1, 2025
Comp works great and as intended. Got it fast. The craftsmanship if fantastic
Would recommend: Yes
Was it helpful to you? Yes | No
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cig for a Sig

by craig, Verified Owner from MI, United States Written on February 5, 2025
Goes on smooth. Looks great. Works better! Could have found a better comp for the price with such positive reviews
Would recommend: Yes
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Wow! This is legit.

by RangerBoy, Verified Owner from OR, United States Written on January 29, 2025
Mounted this on a P320 compact with a Wilson Combat grip frame and flat sig trigger. I installed the Silencer Co threaded barrel at the same time. First off, it ran flawlessly through 100 rounds of 115 grain mild xtp handloads and Blazer fmj. I couldn't believe how easy it shot. The recoil and jump reduction is incredible. There is a little more blast in your face with top port, but totally worth it. The real capper was when my wife shot it. For her, a couple ten round mags of 9mm and she's done. When she tried this setup, she'll literally started laughing and went through the last 70 rounds I had with me. On top of that, her groups were a third the size she usually shoots and wanted to shoot more. In the right situation, money might buy you some accuracy.
Pros:
  • Recoil Reduction
  • cancels muzzle jump
  • so easy to shoot
Cons:
  • muzzle blast, but a worthy tradeoff
Best Used for:
  • Anything you want
Would recommend: Yes
Was it helpful to you? Yes | No
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Great Comp

by missouri shooter, Verified Owner from MO, United States Written on December 22, 2024
Fit and finish are really nice. This comp tightens up the group on fast fire follow up shots
Would recommend: Yes
Was it helpful to you? Yes | No
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Absolutely beatiful!

by Danny Elliott, Verified Owner from TX, United States Written on October 12, 2024
Really nice product and great upgrade for my P320. Paired it with a Killer Innovations threaded barrel and a Brouwer Solutions grip module.
Would recommend: Yes
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Solid Product / Addition

by Seth, Verified Owner from NV, United States Written on October 1, 2024
I’ve always heard they are cool to have, but I never really knew if it was for function or fashion when most people said “you need a comp.” Well, I can say it nicely covers both! Good fit, clean look on the P320 & levels out the shot nicely. Good choice of an add on!
Would recommend: Yes
Was it helpful to you? Yes | No
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