Backup Tactical Threaded Barrel for SIG P320 Compact 9mm (FDE)
Not Yet Rated | Write the First Review SKU: 222-BAC-S320TB-FDE
UPC: 686696690345
MFG#: S320TB-FDE

Backup Tactical Threaded Barrel for SIG P320 Compact 9mm (FDE) — S320TB-FDE

Building a Flat Dark Earth P320 Compact and want a threaded muzzle that looks right and runs right? This Backup Tactical barrel is a clean upgrade for the standard P320 Compact platform. It keeps the familiar Compact feel, adds common muzzle threads, and finishes the build with an FDE look that matches popular frames and accessories.

This model is intended for the standard SIG P320 Compact that uses the 3.9" factory barrel. It is not for the P320 X-Series Compact with the 3.6" factory barrel.

Why it’s a solid pick

• Flat Dark Earth finish for FDE-themed builds

• Common 1/2x28 thread pitch for broad muzzle device compatibility

• Made from AISI 416 stainless steel

• Pulled-broach rifling with a 1:16 twist

• Cut for the loaded chamber indicator (LCI) and listed to work with or without LCI setups

• Thread protector included

Specifications

MPN: S320TB-FDE
UPC / GTIN: 686696690345

• Caliber: 9mm Luger (SAAMI spec)

• Thread pitch: 1/2x28

• Overall length: 4.52 inches (overall, without thread protector)

• Material: AISI 416 stainless steel

• Twist rate: 1:16

• Rifling: pulled-broach

• Finish: Flat Dark Earth

• LCI: cut for LCI; listed compatible with P320s with or without LCI

• Included: thread protector

Fitment notes (read before ordering)

• Fits: Standard P320 Compact that uses the 3.9" factory barrel

• Does not fit: P320 X-Series Compact with the 3.6" factory barrel

If you’re unsure which version you have, confirm the factory barrel length before checkout.

What’s in the box

• Backup Tactical threaded barrel (S320TB-FDE)

• Thread protector

Safety and installation note

Firearm parts should be installed and checked by a qualified gunsmith if you’re not experienced. Always function-check safely before live use.

FAQ

What thread pitch is this barrel?
It uses 1/2x28 threads.

Will this fit the P320 X-Series Compact (3.6")?
No. This model is for the standard Compact that uses the 3.9" factory barrel.

Does it include a thread protector?
Yes, a thread protector is included.

Is it compatible with an LCI setup?
It’s cut for LCI and is listed as compatible with P320s with or without an LCI.

What’s the part number and UPC?
MPN: S320TB-FDE. UPC/GTIN: 686696690345.

Is it “drop-in”?
Many users treat it as a straightforward replacement part, but tolerances can vary between pistols. If anything feels off, stop and consult a qualified gunsmith.