Backup Tactical Threaded Barrel for SIG P320 Compact 9mm | Black Nitride
Not Yet Rated | Write the First Review SKU: 222-BAC-S320TB-BLK
UPC: 686696690338
MFG#: S320TB-BLK

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

If you’re upgrading a standard P320 Compact and want a clean, reliable way to add muzzle threads, this Backup Tactical barrel is built for the job. It’s made for the standard SIG P320 Compact that uses the 3.9 inch factory barrel and is not intended for the P320 X-Series Compact.

Why people choose this barrel

• Adds 1/2x28 muzzle threads for common device compatibility

• Durable black nitride finish for wear resistance and easy maintenance

• Made from 416 stainless steel with pulled-broach rifling and a 1:16 twist

• Includes a thread protector

• LCI cut and listed as compatible with P320s with or without an LCI

Quick specs

Manufacturer part number (MPN): S320TB-BLK
UPC / GTIN: 686696690338

Fitment and compatibility (read before ordering)

This barrel is intended for the standard P320 Compact platform that uses the 3.9 inch factory barrel. It is not for the P320 X-Series Compact. If you’re unsure which model you have, confirm your factory barrel length and slide family before checkout.

What’s included

• Threaded barrel (S320TB-BLK)

• Thread protector

Important notes

Always follow safe firearm handling practices. If you’re not experienced with parts installation, use a qualified gunsmith and function-check your firearm before live use.

FAQ

Will this fit the P320 X-Series Compact or X-Compact?
No. This model is for the standard P320 Compact that uses the 3.9 inch factory barrel, not the X-Series Compact family.

What thread pitch is it?
1/2x28.

Does it come with a thread protector?
Yes, a thread protector is included.

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

What material and finish are used?
It’s listed as 416 stainless steel with a black nitride finish.

Is it drop-in?
Many customers treat it as a drop-in style replacement, but fit can vary across individual pistols. If anything feels off during installation or function checks, stop and consult a qualified gunsmith.

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