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Barrel Threading


We thread rifles for suppressors or muzzle brakes using a single point threading on a HAAS II commercial lathe (CNC).

Rifle 1

**Call before ordering if you are uncertain if you need any additional services. If added during the process, services will be invoiced once threading is completed.

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Silencer Central's Barrel Threading Service

Silencer Central offers a unique barrel threading service where you can ship the gun directly to us or drop it directly at HQ. Simply strip your rifle down to a barreled action for easy handling and we’ll do the rest! No matter if it is a common hunting rifle or a custom match grade piece, we’re ready to take on your barrel threading project, and give it all the attention to detail and care that Silencer Central is famous for.

We will accept barreled actions and complete guns based on the purchased Tier Package. If you send a barreled action, please place packaging around the trigger housing to ensure it doesn’t get damaged. If you have an AR platform, please send only the upper. We do not need the lower half for the threading process and because of the pistol grip, it doesn’t fit well in the soft cases for delivery.

Remove all accessories from your firearm before mailing or dropping them off. This includes slings, mounts, scopes, scope rings, etc. Any firearms with attached accessories could be subject to additional charges. *We accept no liability or responsibility for any damage that could occur if your rifle isn’t packaged according to our examples below. This includes removing all accessories from the firearm prior to delivery or drop-off.

An order form must be included with all packages mailed to our office, including return shipments with the 360 Mailing Program. We require the form to know who you are, your threading requests and to make sure your contact information is up-to-date in our system.



Threading To Caliber

We thread your barrels to meet the guidelines given to us by our suppressor manufacturer to ensure each rifle has the proper amount of shoulder to support your silencer. We thread to caliber and then cross-check diameter to ensure stability.

Threading to Caliber Minimum Diameter for Thread Size
Caliber Thread (Default) Min. Muzzle Diameter Thread (Secondary) Thread Length
Rimfire 1/2 x 28 .560″ 7/16 x 28 0.400″
.20 to 24 1/2 x 28 .560″ 7/16 x 28 0.600″
.243 to .358 5/8 x 24 .685″ 1/2 x 28 0.600″
.375 to .458 3/4 x 24 .810″ 5/8 x 24 0.600″
If the barrel diameter is smaller than the minimum muzzle diameter we will thread to the secondary thread size.

How To Properly Prepare Your Barrel For Shipping

Improper Way To Prepare Barrel For Shipping

How it works

How it works


Purchase Barrel Threading

Add Barrel Threading to Your Cart and Checkout.

Package Your Items that need to be threaded

Remove all accessories from your rifle and package your barrel(s) in the provided soft cases, fill out the order form and secure it in the soft case, then use the prepaid label to send it off to Silencer Central.

CNC Barrel Threading

Once we receive your barrels, our certified machinist will thread them according to your order form specifications, add on a thread protector and ship your threaded order back to you.

We ship directly to your front door

Once your Barrel has been threaded, Silencer Central will ship your completed order back to you.


Barrel Threading is $124.99 per barrel,  plus any gunsmithing add-ons, tax, and shipping depending on your chosen service. All barrel threading services include a thread protector, valued at $20. Turnaround time varies based on current workload. If you would like to confirm turnaround time, please get in touch with us at 888.781.8778.

Visit our services page for additional services available, prices vary depending on additional services requested.

*Please note, items must be unloaded, ensure there is no round in the chamber and that the magazine or tube is empty before shipping or dropping off with us.
*Silencer Central can not accept firearms that do not have a visible serial number unless documentation is included. If we receive a firearm with no visible serial number & lacking documentation, the item will be turned over to the ATF.
* Silencer Central Uses 4″x8″x48″ boxes, please ensure your riffle/barrel will fit into the container for return shipping. Silencer Central will not accept odd-shaped cases such as guitar cases or oversized gun cases.



Items dropped off at our Sioux Falls, SD location may be picked up in the store or shipped to you for $19.99.

If your barrel was shipped with a 360 Mailing Program, orders will be shipped to you when the work is completed.

We thread to the recommendation and guidelines of the company that builds our suppressors. We always thread to caliber first and then cross reference with diameter of the barrel. Most of our customers have the gunsmith determine the best thread pitch for each barrel to ensure the best results.

If you absolutely want a specific thread, you can put it in the note section on the threading order form and the gunsmith will try to fulfill your request, if diameter allows. We offer a thread adapter that steps up a 1/2 x 28 thread to 5/8 x 24 if your thread is smaller than your silencers thread pitch.

We do not make custom barrels. We are set up to mainly do threading and at this time are not setup to build or install barrels.

At this time we are only able to thread a blowback-style pistol like a Ruger Mark series pistol. We can look to see if an aftermarket barrel exists for your pistol and (if available) order one for you. Payment is required when ordering and our team will ship you the barrel once the barrel is received at our HQ.