45 ACP Threaded Barrel

45 ACP Threaded Barrels


45 ACP Threaded Barrel Blanks 

Liners come in 4 different Lengths:

6″, 10″, 20″,28″

The twist rate is 1-12 inches


45 ACP Threaded Barrel 

Rifled and also Chambered for 45 ACP
All the liners / blanks we sell have been tested and can withstand the pressure of the round they are chambered for standalone.

Barrel Liner Specifications

Outside Diameter Details .645″ for 20 & 28″
.620″ for 11″ and Shorter Liners
Threaded 5/8-24 NF on Chamber and Muzzle
Chambered for  45 ACP. (Now chambered full SAAMI Specifications)

Rifle dimensions for our 45 ACP Threaded Barrel Blanks are .451″/.445″ with 6 lands and .145″ wide.

All 45 Caliber Barrel Liners have a twist rate of 1-12.”

We do not recommend Re-Chambering 45 Long Colt Threaded Barrel Blanks for a different round, for instance, changing 45 auto to 45 lc.

Button-rifled! Made for people who would like to restore accuracy to older guns with rusted, pitted or just worn out barrels. To install, first drill out existing rifling with a drill a little larger than the liner you are installing. For best results, we would recommend grinding or having someone grind a pilot on the drill about the size of the current rifling because this will keep it centered better , then solder the Barrel Liner in place. Or you can also use JB Weld or Acraglas gel because we have had many customers say they worked well.

Because we are not gunsmiths, these are just suggestions based on what we have learned over the years and from the nice people that we have come in contact with. A skilled gunsmith with proper tools should be able to install these with no problem.

45 ACP Threaded Barrel Blanks are specifically for custom builds.

Threaded on both ends 5/8-24 NF as a result it is easy to thread into a barrel block or frame.  In addition the muzzle end is threaded to attach a thread protector, muzzle break, Compensator or a  Flash Hider.

WARNING: Our Gun barrel liners are made and tested for the rounds they are chambered for.  Only use with the specified rounds. It is dangerous to chamber these gun barrel liners in other calibers and can cause serious bodily injury.


If you like this product you may like our other Threaded Barrel Blanks




Additional information

Weight N/A
Dimensions N/A

6", 11", 20", 28"


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