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Rebuilding History,

One Firearm at a Time

We combine traditional gun smithing values with modern precision to recreate legendary firearms that reflect the artistry, durability, and historical significance of the originals that inspired them.

While we work on all matter of firearms, Browning & Thompson’s are our specialty.

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                    1919A4 FRT                   

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                    1919A4 FRT                    |

UPDATED DETAILS ON 1919A4 AVAILABILITY AND SERVICES

Updated 09.14.26

We have been getting a ton of questions in the last week about 1919A4 builds and the installation of the new FRT. Please see the FAQ on the right, or reach out via the contact form for questions not covered.

We have more 1919A4 parts kits on the way to get builds of new guns done. If you are looking to have one built, please see our Build Services page.

We are constantly updating our YouTube channel with more and more details. Please subscribe to via the link here - https://www.youtube.com/@malicoindustries?sub_confirmation=1

  • Unfortunately no, we sold our last 3 in the span of 12 hours on September 2nd.

    The good news we will have kits and be back in stock soon!

  • We are currently out of kits, but we will have more by early October. We are not selling the kits, but we will be building them into guns for sale.

    Please contact us to reserve yours today!

  • Yes, we offer 1919A4 kit building services. We offer several options on the build.

    Please see our Services page for current pricing and options.

  • Our backlog changes constantly, so this will be a case by case basis and what you are looking to have done. Please reach out on the contact form to check on current times.

    In general, expect ~3 weeks.

  • We offer a full range of milling options for the barrel extension, lock frame, and bolt. Please see our Milling Services page for details

    We also have Barrel Extensions for sale, pre-milled here

  • Unfortunately no, we have decided not to offer installation services or assistance on the Appalachian Arms FRT.

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Featured Products

1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services 1919A4 Build Services
1919A4 Build Services
from $1,450.00

We offer our experience building 1919A4 kits, send us your kit and let us do the work for you! The price includes all parts needed in addition to your part kit to complete the build, including the side plate, rivets, and semi-auto or FRT components.

The price includes the following:

  • Our kits are in .308/7.62 NATO

    • 30-06 is available at an additional cost, contact us for details

  • Right Side Plate - Could be either KMP or a Malico Industries plate out of 4140 Steel

  • Milling required to all components to KMP component specs

  • Cleaning, part verification, and assembly of the kit

  • Test firing to verify operation

  • Return shipping is included in cost - Continental US Only

  • Select from configurations in Semi-Auto, FRT Ready, or both

    • When selecting FRT Ready. You will get a gun tested in semi-auto, but when shipping it will come without a trigger and sear. Also, the T-Block will be unmodified. If you are planning to send it to 2AC, let us know.

    • When selecting both. The gun will come will come setup semi-atuo, with those parts installed. You will also receive a barrel extension that is milled to fit and the T-Block is unmodified.

  • Finishes Offered

    • Parkerizing - Matte Slate Grey (Pictured)

    • Black Oxide - Matte Jet Black (Not Pictured)

  • Media Blasting Level

    • We offer either exterior only refinishing or complete refinishing if you are looking to save costs

  • If your kit is missing parts, there will be an additional charge for the cost of those parts. We will review the kit upon receipt

  • If the kit you send us is covered in heavy cosmoline and needs removal, there will be an additional charge of $150

NOTE - If you are selecting to build from our kit. We are out of stock of kits until October, but taking orders to reserve and pre-sell the kits we have coming in. They will be on a first come, first serve basis.

Lead times may vary on many factors, please contact us before to verify timing.

1919A4 NOS Barrel Extension - Unmodified T-Block 1919A4 NOS Barrel Extension - Unmodified T-Block 1919A4 NOS Barrel Extension - Unmodified T-Block
1919A4 NOS Barrel Extension - Unmodified T-Block
from $99.95

1919A4 Stripped Barrel Extension - New Old Stock Condition

NOW SHIPPING!

  • These Barrel Extensions came to us still wax sealed and covered in cosmoline. They are brand new and never used.

  • We will unwrap, clean, and mill the denial island for semi-automatic use.

    • Using KMP right side plate specifications

  • The T-Block is unmodified, so it can be used with the current FRTs on the market

  • Unit is stripped and does not have a barrel spring or breech lock installed

  • Finishes Available

    • Raw - Milled surface is bare steel

    • Parkerized - Unit is media blasted and reparkerized ( Not pictured )

Thompson 1921/1928 Stock Slide Assembly Thompson 1921/1928 Stock Slide Assembly Thompson 1921/1928 Stock Slide Assembly Thompson 1921/1928 Stock Slide Assembly
Thompson 1921/1928 Stock Slide Assembly
from $155.00

NOW SHIPPING!

MADE IN THE USA

This is a new production slide assembly for the 1921 / 1928 Thompson.

  • Milled from 4140 Alloy Steel with a 32uin/0.8um Ra finish

  • All threads to standard #14-24 Thompson threads

  • Includes the main slide assembly, lever, button, spring, and stainless steel lever pin

  • Built to the exact specs of the original slide assemblies

  • Finishes

    • In the White - Comes with noted machine finish, ready for your finishing preference. Unit dissembled to make finishing easier.

    • Parkerized - Matte Dark Grey / Black Manganese parkerized finish. Comes fully assembled.

    • Black Oxide (Hot Caustic Bluing) - Gloss Black finish. Comes fully assembled.

  • Mounting hardware sold separately - https://www.malicoindustries.com/shop/p/thompson-stock-slide-assembly-mounting-hardware

  • All stocks are different and that your stock may need some slight fitment for this to fit correctly - Video coming soon with tips and tricks to assist with this.

Please Expect 2-3 Business Days to Ship

See this video on YouTube showing the slide assembly development details - https://youtu.be/4BlfCCfFvGQ

MFG Part # - 21-28SA

Thompson Buttstock Frame Screws Thompson Buttstock Frame Screws Thompson Buttstock Frame Screws Thompson Buttstock Frame Screws
Thompson Buttstock Frame Screws
from $10.00

NOW SHIPPING!

MADE IN THE USA

These screws will attach the slide assembly to the to the stock on the 1921 or 1928 models, and the stock to the frame on the M1 & M1A1.

  • One long, one short screw using the standard #14-24 threads

  • Finishes

    • In the white

    • Parkerized - Dark Grey / Black Manganese Parkerized Finish

    • Black Oxide (Hot Caustic Bluing) - Gloss Black Finish

Thompson M1/M1A1 Stock Butt Plate Thompson M1/M1A1 Stock Butt Plate Thompson M1/M1A1 Stock Butt Plate Thompson M1/M1A1 Stock Butt Plate
Sold Out
Thompson M1/M1A1 Stock Butt Plate
$0.00

NOTE - PRODUCT IS CURRENTLY IN DEVELOPMENT, SLATED FOR SEPTEMBER/OCTOBER 2026 AVAILABILITY

Expected price range $100-150, will be available in the white, black oxide, and black parkerized.

Sign up below to be notified when they are in stock

New production Butt Plate for the M1 or M1A1 Thompson stock.

  • All new parts, made from A1011 Hot Rolled Steel

  • Will include all parts for the trap door, including newly made leaf spring

  • Made to original specifications

  • Mounting hardware sold separately

  • All stocks are different and some fitment may be required

  • Photo is a CAD drawing of 1928 buttstock only for show

Thompson 1921/1928 Stock Butt Plate Thompson 1921/1928 Stock Butt Plate Thompson 1921/1928 Stock Butt Plate Thompson 1921/1928 Stock Butt Plate
Sold Out
Thompson 1921/1928 Stock Butt Plate
$0.00

NOTE - PRODUCT IS CURRENTLY IN DEVELOPMENT, SLATED FOR FALL 2026 AVAILABILITY

Expected price range $100-150, will be available in the white, black oxide, and black parkerized.

Sign up below to be notified when they are in stock

New production Butt Plate for the 1921 or 1928 Thompson stock.

  • Machined from 4140 Steel with a 32uin/0.8um Ra finish

  • Will include all parts for the trap door

  • Mounting hardware sold separately

  • All stocks are different and that your stock may need some slight fitment for this to fit correctly

  • Photo is a CAD drawing only for show

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