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Item #:
HC320-BL-1/2
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860005892945
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HC320 SIG P320 COMPENSATOR

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$89.99
$80.99
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*Free shipping is only available when full cart value exceed’s $199

The Herrington Arms HC320 Compensator is designed to work flawlessly with Sig Sauer P320 series. It does an amazing job at reducing vertical climb of muzzle as well as reducing the horizontal recoil arc. 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.

Works great with stock springs so no need to change anything, fits on 1/2-28 threaded barrel X-Compact, Compact, X-Carry and full-size P320’s.

*Blems are cosmetic ONLY. They will function as normal.

- May have nicks, dings, pitting, machining marks, chips, discoloration, etc.


Highlights

  • Engineered to greatly reduce vertical and horizontal recoil of your gun
  • Makes target re-acquisition easier with follow-up shots
  • Highly durable 7075 Aluminum for extreme longevity and lightness
  • Black Anodize or FDE Cerakote finish to complement your specific configuration
  • Easy to install, no gunsmith required!
  • Uses Steel replacement 8-32 set screws
  • No questions asked, lifetime warranty!
  • NEW SLIDES OR BARRELS MAY REQUIRE A 300 ROUND BREAK IN!
  • NOT COMPATIBLE WITH BAR-STO, KKM, OR EFK BARRELS!
  • REQUIRES A THREADED BARREL
  • Works with all Sig P320 9mm models 
  • Length is 1.125 inches long
  • 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. 

The difference between the HC320 and HC320XL

The HC320XL is 1/8" longer than the HC320 and only has dual top ports instead of our flagship side and top ports. Both comps reduce recoil at almost identical percentages but the felt recoil in your hand feels slightly different. The HC320 has a softer felt recoil in the hand but the HC320XL has a little less muzzle flip. We designed the HC320XL specifically for the guys running the Flux Defense Raider Chassis (FLUX RAIDER (Brace) — FLUX Defense) and guys who shoot a lot from retention. It honestly comes down to personal preference on which comp is the comp for you!

The P320 X Full & HC320 Compensator

The new P320 X FULL rounds out the X Series with an entry full-size model.   The 4.7” slide and 5.5" threaded barrel offer unparalleled accuracy and comfort without sacrificing the ability to carry concealed.  The grip module is compatible with the removable magwell and grip weight and is designed with an extended beavertail and deep undercut for a high grip and better recoil control.  The XRay3 day/night sights offer high visibility in all lighting conditions, and the rear sight plate assembly allows the direct mounting of the new Romeo1 PRO optic, as well as the popular Delta Point Pro.  The new LCI flag allows visual and tactile confirmation of a loaded chamber with ease.  Each P320 X FULL comes standard with two (2) 17rd mags.

The HC320 Compensator adds its powerful recoil reducing properties to your P320X full-size pistol with flawless fit and comes in FDE Cerakote or Black Anodized options, it’s a smart upgrade if you need to evolve your pistol’s target re-acquisition abilities after each bullet.

The P320 X Carry & HC320 Compensator

Now, all of these features are available in the most comfortable size. The P320 X Carry features a full length grip, a shortened dust cover and a low-profile internal magwell. Combined with the extended beavertail and high undercut trigger guard, the X Carry offers ultimate comfort and concealability AND improved recoil control. The 4.6" threaded barrel and 3.9” X series slide with enhanced serrations come equipped with the X-Ray3 day/night front sight with rear night sight plate assembly. The X Carry is fully compatible with the new ROMEO1 PRO reflex optic as well as the popular Delta Point Pro and comes with two (2) 15-rd magazines. 

With the Herrington Arms HC320 Compensator your compact and highly ergonomic P320 X Carry gains incredible amount of reduced vertical and horizontal recoil properties, FDE Cerakote and Black Anodized finish options complements your specific configuration.

The P320 X Compact & HC320 Compensator

Ergonomics and performance have become the standard of the P320 X Series. Now, all of these features are available in a compact size. The P320 X Compact features a completely redesigned modular polymer X Series grip with a reduced fastback carry cut and a low-profile internal magwell. Combined with the extended beavertail and high undercut trigger guard, the X Compact offers ultimate comfort and concealability AND improved recoil control. The 4.3" threaded barrel and 3.6” X series slide with enhanced serrations come equipped with the X-Ray3 day/night front sight with rear night sight plate assembly. The X Compact is fully compatible with the new ROMEO1 PRO reflex optic and comes with two (2) 15-rd magazines. The P320 X Compact is the ultimate balance of form and function and redefines what compact pistols should be.

With the Herrington Arms HC320 Compensator your compact and highly ergonomic P320XCompact gains incredible amount of reduced vertical and horizontal recoil properties, FDE Cerakote and Black Anodized finish options complements your specific configuration.

About Sig Sauer

In 1853, Friedrich Peyer im Hof, Heinrich Moser and Conrad Neher began what they thought would become a successful wagon factory above the Rhine Falls in Switzerland.

Little did they know then, their company would become one of the world’s most renowned manufacturers of small arms. Just seven years after constructing an industrial plant for building the most sophisticated wagons and railway cars, the three ambitious owners undertook a more serious venture.

In part to a challenge from Switzerland’s Federal Ministry of Defense, the Swiss Wagon Factory entered the competition to develop a state-of-the-art rifle with the hopes the Swiss Army would adopt it.

At this point, the Swiss Wagon Factory, with an order for 30,000 muzzle loading Prelaz-Burnand rifles in hand, changed the name of the company to the Swiss Industrial Company – Schweizerische Industrie-Gesellschaft, known worldwide as SIG.

Fast-forward to the 20th century, in 1949, the SIG P49, the forerunner of the SIG P210 was developed for the Swiss Army and destined to become a legend on the battlefield as well as the competition field. That same year, the P220 made its appearance as the new pistol for the army, soon followed by the compact P230 for the Swiss Police. These pistols offered new features and levels of reliability never before seen in the industry.

October 1, 2007 SIGARMS changed its name to SIG SAUER.

The change reflected the vast worldwide growth in demand for Sig Sauer products. In response, the company more than tripled its work force in the next 30 months, invested 18 million US dollars in state-of-the-art manufacturing facilities and equipment, and significantly expanded its engineering base. The name change, coupled with major new product introductions in pistol and rifles, reflects the continued commitment to the high standards of production, service and innovation the Sig Sauer brand has always represented.

The Herrington Arms HC320 Compensator is an amazing compensator that greatly reduces the vertical and horizontal recoil of your P320 with two finish options of FDE or Black to match your weapon color. This is easily one of the best upgrades for your P320 platform that is also at an incredibly competitive price point.

Specifications

Material: 7075 Aluminum

Finish: FDE Cerakote or Black Anodize finish

Compatibility: Full size P320’s, P320 X Compact, P320 Compact, P320 X Carry 1/2-28 threaded barrels*

Included: 5/64 Allen key, Steel replacement 8-32 set screw

146 Reviews Hide Reviews Show Reviews

  • 5
    Function and Form

    Posted by Dominic Podzemny on Jun 19th 2025

    I love the look of this compensator over other options and how the aesthetic is inside a full size frame with a compact slide without the nose protruding too far. After installing and using for approximately 200 rounds it is incredibly flat shooting in a TXG frame to the point it felt like shooting a .22LR handgun, top marks all around. I did have to tighten the set screws halfway through shooting, you might want to pick up a spare set in case they fall out. Personally I won't be putting loctite on because I run a suppressor occasionally. If the line could be expanded to include a 13.5x1LH thread pitch comp to match the factory Sig barrels I'd be even happier as I prefer OEM and had to do some scouring to find a reasonably priced 1/2x28 option but as is this package is a must buy if you want a comp on your 320.

  • 5
    Perfect!

    Posted by Nick Jones on Jun 19th 2025

    Put my first round through this today, with a total of zero malfunctions out of 200 rounds. Love it!

  • 5
    good quality product

    Posted by Arthur Call on Jun 19th 2025

    Quick easy assembly. easy to remove for cleaning.

  • 5
    Fantastic product for price.

    Posted by E Gomsi on Jun 19th 2025

    Really nice product compared to competitors of similair price. Fit, finish, design all really good. This is a true carry comp. It seems it will be limited in recoil reduction, but i have no doubt this will draw and holster like a dream. If it does nothing more than soften my 124gr hollow points down to 115gr values, and i can carry it with less snag factor than my wml i will be a super happy camper. Trying to figure out how to add a pic of the comp flush-mounted in the wilson combat grip. It's just gorgeous. Too bad i'm gking to move on to AXG grip.

  • 5
    6SpeedShooter

    Posted by Aaron Walker on Jun 19th 2025

    Amazing product. Great quality. Super simple installation. Fast shipping. Overall great experience 10/10

  • 5
    P320 Comp. Awsome product!!

    Posted by John mark Flores on Jun 19th 2025

    Great customer service. They let me know which barrels were compatable with their comp and great turn around time. recieved earlier than expected. After break in period of new barrel Comp runs everything I feed it. Shoots super flat

  • 5
    P320

    Posted by Raynald Mercado on Jun 19th 2025

    to my compensator it’s shoot flat thanks

  • 2
    A bit disappointed

    Posted by Benjamin Rice on Jun 19th 2025

    Picked one of these up off of BDU and did a build based on this combined with a compact threaded barrel on a full size frame. Fit and finish are pretty damn good, no complaints. Looks really good on my Zaffiri Precision slide with an Agency barrel. Now, here is where the issues come in. Nowhere on this page nor on the BDU page does it say anything about requiring heavier/higher power loads to function correctly on compact length. Ok, perhaps I should have known that but when you say it works with factory weight recoil spring and leave it at that...... in my mind that means factory ammo as well and the most common ammo out there is 115gr. It took a bit of research to find out that compact barrel lengths require either +p or a 124gr to function, ok I can forgive that I suppose. Still only ran about 85% reliability with 124gr S&B and no matter what I did, refused to lock back on last round. Ordered a recoil spring tuning kit and reduced the spring weight by 1lb, within the first 15 rounds, 2 malfunctions. Take off comp and runs flawless. Drop two pounds off spring and now both 115 and 124gr seem to be running fine but the slide won't always go into battery. At this point I'm starting to get annoyed. I'll allow for a bit more break-in but I'm not hopeful.

  • 5
    Works great

    Posted by Lonnie Hermann on Jun 19th 2025

    East install, definitely reduces recoil making sight acquisition much faster between shots.