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Questions & Answers
Can the threaded barrel fit in the p365x macro? Expert Answer

The True Precision Sig Sauer P365 Threaded Barrel, 1/2x28 will not fit the P365X Macro.

by Hunter, Gear Expert, December 12, 2022
Will this barrel work for the P365-380? Expert Answer

No, this True Precision Sig Sauer P365 Threaded Barrel is chambered for 9mm not .380. We do not currently carry any aftermarket barrels for the P365 chambered in .380.

by Ethan, Gear Expert, July 25, 2022
Customer Reviews
Helpful Positive Review
Complete looked by Arod, Verified Owner, May 7, 2024
I have not been able to head to the range yet but just the amount of curb appeal this adds is amazing. Changes entire look of gun. Added true precision compensator as well perfect match
1/4 found this helpful
Helpful Positive Review
Sig 365 threaded barrel by gregsr, Verified Owner, November 30, 2024
Very nice,very detailed, shoots spot on, comes with a nice aluminum thread protector with O-ring. It adds 3/4 of an inch to the stock barrel.
1/1 found this helpful
Helpful Positive Review
The finish is quite nice, it fits perfectly. It is actually machined to tighter tolerances than the factory barrel. Its slightly longer than expected but not a problem at all.
1/1 found this helpful
Helpful Positive Review
007 would approve by zamcpnw, Verified Owner, May 21, 2026
Drop-in fit on the P365 was perfect, no fitting required. The barrel seats flush and lockup is solid. Threading is precise and concentric – ran my Huxwrx 9K on it first range trip with zero alignment issues and no baffle strikes. Accuracy is noticeab...
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1/1 found this helpful
Helpful Positive Review
P365 threaded barrel by Germ, Verified Owner, November 3, 2024
Great quality product!Every product I've bought from Optic Planet has been perfect and shipping is fast!
1/1 found this helpful
Helpful Positive Review
True Precision Sig Sauer P365 Threaded Barrel, 1/2x28 by CJ, Verified Owner, November 13, 2024
I partnered the True Precision Sig Sauer P365 Threaded Barrel with the Herrington Arms HC365 Pistol Compensator For Sig P365/P365Xl in the Strike Industries Enhanced Grip Module for the SIG P365 and this is has been the perfect combination for me. I ...
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1/1 found this helpful
Read All 74 Reviews
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Product Info for True Precision Sig Sauer P365 9mm Luger Threaded Pistol Barrel

The TRUE drop-in ready barrel for the Sig Sauer P365, designed for the 3.1" P365, P365 SAS, & P365X (3.1") 9mm models (also available for P365XL and XMACRO, 3.7”). TRUE barrels deliver unmatched accuracy, combining advanced cuts, chamfers, and feed ramp designed to outperform OEM standards and to ensure reliable feeding of all types of ammunition designs, including defensive ammo. Our proprietary stainless steel broach cut rifling underscores our commitment to those who demand only the best. image

*Notice* For certain pistol versions that have a loaded chamber indicator the need to remove the LCI or modify it by shortening is required to use this barrel. Once performed this barrel will function correctly in the the LCI equipped firearm.

Specifications for True Precision Sig Sauer P365 9mm Luger Threaded Pistol Barrel:

Manufacturer: True Precision
Finish: PVD
Fabric/Material: 416R Stainless Steel
Barrel Length: 3.1 in
Barrel Twist Rate: 1-10
Caliber: 9mm Luger
Barrel Material: 416R Stainless Steel
Gun Make: SIG Sauer
Gun Model: SIG Sauer P365
Additional Features: 11* Competition Muzzle Crown
Included Accessories: Standard
Condition: New
Rifling Profile: 6 Groove Rifling

Features of True Precision Sig Sauer P365 9mm Luger Threaded Pistol Barrel:

  • Easy to install drop-in design fits the P365 (3.1"), P365 SAS, and P365X. Will NOT fit the XL 3.7" pistols or 380ACP P365;
  • Threaded barrel length is 3.76" overall (without thread protector attached);
  • Advanced proprietary broach cut design specifically engineered for increased accuracy potential;
  • Broach cut 6 groove rifling allows for all ammo types to be used safely, including cast lead;
  • 100% manufactured with certified 416R stainless steel;
  • 9mm 1/10RH twist rifling;
  • SAAMI spec chamber;
  • Improved overall fit from OEM with added chamfers, improved radius cuts, and other additions for a better than OEM barrel;
  • Improved feedramp design over OEM for more reliable feeding of defensive ammo;
  • Lifetime performance warranty on function

Package Contents:

  • True Precision Sig Sauer P365 9mm Luger Threaded Pistol Barrel
  • 1/2X28" Thread Protector
  • Viton high heat integral O-ring lock

True Precision Sig Sauer P365 9mm Luger Threaded Pistol Barrel Orderable Models

List of Orderable Models

  • True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Black Nitride, TP-P365B-XTBL , MPN: TP-P365B-XTBL , UPC: 719104536253 , Code: 3GM-PTB-TP365TB-TP-P365B-XTBL
  • True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Stainless Silver, TP-P365B-XT , MPN: TP-P365B-XT , UPC: 719104536246 , Code: 3GM-PTB-TP365TB-TP-P365B-XT
  • True Precision Sig Sauer P365 9mm Luger Threaded Pistol Barrel, 3.1in, 1-10 Twist, 1/2x28, Black DLC, TP-P365B-XTBC , MPN: TP-P365B-XTBC , UPC: 719104536260 , Code: 3GM-PTB-TP365TB-TP-P365B-XTBC
  • True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Copper TiAlN, TP-P365B-XTC , MPN: TP-P365B-XTC , UPC: 719104536291 , Code: 3GM-PTB-TP365TB-TP-P365B-XTC
  • True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Spectrum, TP-P365B-XTS , MPN: TP-P365B-XTS , UPC: 719104536307 , Code: 3GM-PTB-TP365TB-TP-P365B-XTS
  • True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Stealth Gray, TP-P365B-XTA , MPN: TP-P365B-XTA , UPC: 719104536314 , Code: 3GM-PTB-TP365TB-TP-P365B-XTA
  • True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Gold TiN, TP-P365B-XTG , MPN: TP-P365B-XTG , UPC: 719104536277 , Code: 3GM-PTB-TP365TB-TP-P365B-XTG

True Precision Sig Sauer P365 9mm Luger Threaded Pistol Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • USED, True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Stainless Silver, TP-P365B-XT , MPN: TP-P365B-XT-EDEMO , Code: 3GM-PTB-TP365TB-TP-P365B-XT-EDEMO-SC-C
  • USED, True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Stainless Silver, TP-P365B-XT , MPN: TP-P365B-XT-EDEMO , Code: 3GM-PTB-TP365TB-TP-P365B-XT-EDEMO-IN-C
  • USED True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Black Nitride, TP-P365B-XTBL, EDEMO6, Used, Condition Fair , MPN: TP-P365B-XTBL-EDEMO6 , Code: 3GM-PTB-TP365TB-TP-P365B-XTBL-EDEMO6
  • DEMO, True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Stealth Gray, TP-P365B-XTA , MPN: TP-P365B-XTA-DEMO , Code: 3GM-PTB-TP365TB-TP-P365B-XTA-DEMO
  • USED, True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Black Nitride, TP-P365B-XTBL , MPN: TP-P365B-XTBL-EDEMO , Code: 3GM-PTB-TP365TB-TP-P365B-XTBL-EDEMO-US-B
  • USED True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Gold TiN, TP-P365B-XTG, EDEMO6, Used, Condition Fair , MPN: TP-P365B-XTG-EDEMO6 , Code: 3GM-PTB-TP365TB-TP-P365B-XTG-EDEMO6
  • DEMO, True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Black Nitride, TP-P365B-XTBL , MPN: TP-P365B-XTBL-DEMO , Code: 3GM-PTB-TP365TB-TP-P365B-XTBL-DEMO
  • DEMO, True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Gold TiN, TP-P365B-XTG , MPN: TP-P365B-XTG-DEMO , Code: 3GM-PTB-TP365TB-TP-P365B-XTG-DEMO
  • USED True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Black DLC, TP-P365B-XTBC, EDEMO2, Condition Parts Only/Salvage, Wrong Product , MPN: TP-P365B-XTBC-EDEMO2 , Code: 3GM-PTB-TP365TB-TP-P365B-XTBC-EDEMO-WP-F
  • USED True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Copper TiAlN, TP-P365B-XTC, EDEMO3, Used, Condition Fair , MPN: TP-P365B-XTC-EDEMO3 , Code: 3GM-PTB-TP365TB-TP-P365B-XTC-EDEMO3
  • DEMO, True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Black DLC, TP-P365B-XTBC , MPN: TP-P365B-XTBC-DEMO , Code: 3GM-PTB-TP365TB-TP-P365B-XTBC-DEMO
  • Open Box, Dealer Demo, True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Black DLC, TP-P365B-XTBC , MPN: TP-P365B-XTBC-DMO , Code: 3GM-PTB-TP365TB-TP-P365B-XTBC-DMO
  • True Precision Sig Sauer P365 Threaded Barrel, 1/2x28, Rose TiCN, TP-P365B-XTR , MPN: TP-P365B-XTR , UPC: 719104536284 , Code: 3GM-PTB-TP365TB-TP-P365B-XTR
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