SIG 1911 .45 ACP Threaded Barrel – 5.6", Full Size, Link and Pin (BBL-1911-45-TACOPS-TB)

This is SIG's factory 1911 full-size .45 ACP threaded barrel: 5.6 inches (142.24 mm), muzzle threads .578 in - 28, a knurled thread cap when nothing is on the muzzle, and it includes the link and pin. SIG heat-treats these replacement barrels for toughness and durability. SIG part BBL-1911-45-TACOPS-TB, UPC 798681437993.

This listing is for the 1911 .45 ACP Tacops threaded barrel, full size, with link and pin only.

Threaded for a Muzzle Device

SIG chambers this barrel in .45 ACP and threads the muzzle .578 in - 28 so you can run a suppressor or other muzzle device. When you are not running one, the knurled thread cap covers the threads.

Link and Pin in the Box

SIG ships this barrel as a link-and-pin assembly — the barrel, the link, and the pin. That is the hardware SIG lists with this part. It is a factory SIG replacement barrel, not an aftermarket tube.

Fitment

SIG writes this barrel for 1911 Full-size pistols in .45 ACP. SIG also says it may require fitment. 1911 barrels are not a grab-and-go swap on every pistol; if you are not set up to fit one, have a smith do it.

SIG 1911 Tacops Threaded Barrel Specifications

What's Included

• Threaded barrel
• Knurled thread cap
• Link and pin

Frequently Asked Questions

Does it come with the link and pin?
Yes. SIG lists this as a threaded barrel, link, and pin for 1911 full-size .45 ACP models.

What is the thread pitch?
SIG publishes .578 in - 28.

How long is the barrel?
SIG lists 5.6 in / 142.24 mm.

Will it drop in?
SIG says it may require fitment. Do not assume a no-fit install.

What pistols is this for?
SIG publishes this barrel for 1911 Full-size pistols chambered in .45 ACP. Contact us before you order if your 1911 is not a SIG full-size .45.