Machining for of revolver cylinders to accept the moon clips and conversions.

For disassembly & reassembly of the S&W Revolvers watch the videos at: 
Video demo on Resources\Videos menu tab.

S&W: Blue Steel, Stainless Steel & Titanium cylinders: 5, 6, 7 & 8 Shot.

J - Frame Models Examples:  5 - Shot
Model 36, 60, 640, 642, 442, etc. 38/357 Calibers

K - Frame Models Examples:  6 - Shot
Model 10, 19, 64, 66, etc. 38/357 Calibers

L - Frame Models Examples:  6 & 7 Shot
Model 586, 686 etc. 38/357 Calibers
Model 69 .44 Mag 5 Shot

N - Frame Models Examples: 6 & 8 Shot
Model 27, 624, 625 LC, 629, etc.  38/357 -  44/45 Calibers

X - Frame Models Examples: 5 - Shot
Machining of the .460 or .500 cylinder, necessitates the use of Moon Clips for ALL Calibers.
Model 460 converted to shoot .45 acp with moonclips
Model 500 converted to shoot .50 GI with moonclips
The rims of the .460 & 500 are not wide enough to fully support the parent case after the machining for moon clips, without using moon clips for ALL calibers.


 to machine / chamfer and return your cylinder
$70 for (10) Stainless Steel Match Moonclips (.025)
$65 for Moon Clip Loading Tool (prevents bending)
$30 for Moonclip Stripper Tool (prevents  bending)

Total: $340.00 

Machining your S&W Model 25 & 625 45LC cylinder to shoot .45 acp.  

You can still shoot the original rimmed cartridge caliber without moonclips, just as you do before the modification.

$175 to machine & chamfer cylinder.  Recessed cylinders add $50.00
$25 for (10) .45 acp Blue Steel (.040) TK Moonclips

Total: $200.00

Rechambering your J, K, L & N cylinder to shoot 9mm: 5, 6, 7 & 8 Shot Cylinders
Rechambering to Factory Spec ammo only. No Reloaded ammo.
When rechambered to 9mm the cylinder will still shoot 38 SPL or 357 with or without the proper moonclip.

Video of 9mm Rechambering

No Titanium Cylinders for rechambering to 9mm.

$350 to rechamber cylinder, machine & chamfer cylinder.  Recessed cylinders add $50.00  
$80 for (10) 9mm (.035) S/S Moonclips

Total: $430.00


Our work on cylinders rechambered to 9mm are LIMITED to our customer's using standard 9mm ammo or low pressure reloads, which are 34,000 - 35,000 psi chamber pressure or less. Same chamber pressures apply to firing of .38 SPL & .357 Mag. Examples of FACTORY Brands are: Winchester, Federal & Remington.

Absolutley NO 9mm Nato, 9mm +P or 9mm +P+, all which are far beyond the 34,000 - 35,000 psi chamber pressure our conversion is intended for. Usually 38,500 psi, which WILL Stick!

If you try to use these high pressure ammo, you will experience cases sticking in all chambers. 

We cannot warranty our work, if you disregard our warning/notice on high pressure ammo.

When rechambered to 9mm the cylinder will still shoot NON-HIGH Pressure ammo, 38 SPL or 357 Mag with or without the proper moonclip.

Reloaded range brass, with the unsupported barrel chamber bulge, will not resize properly and results in inferior ammo for use in this conversion!

Fill out the (Work Order) and ship us the cylinder assembly, payment info or have us call you when the work is done.

In Shop time for machining cylinders is now 1-3 business days * Except *9mm Conversions*
Plus transportation both ways.

Payment can be by Credit Card or Certified Funds

Ship to:

TK Custom 
503 N Church St / PO Box 333
Thomasboro, IL  61878

9 AM - 12 Noon & 1 PM - 5 PM 
Monday - Friday
Saturday By Appointment Only!
Central Standard Time
E-Mail: This email address is being protected from spambots. You need JavaScript enabled to view it. 

Shop: 217.643.2002

Just send the cylinder assembly, NO gun.







To machine your revolver's cylinder we need the COMPLETE cylinder assembly. DO NOT disassemble as we will do that. 


(Smith and Wesson Model 640 Machined & Chamfered with a Haas CNC)

Eli Jx5.jpg


Revolver Cylinder Machining / Many more revolvers can be done. Call with questions. (Some Colt, Rhino, Schofield & Foreign Model Copies)