SIG P320 Compact/X-Carry 9mm Threaded Fluted Barrel 1/2x28 Gold
Agency Arms Mid Line match-grade drop-in barrel for the SIG P320 Compact/X-Carry. You’re getting a fluted barrel for weight reduction and cooling, suppressor-ready 1/2x28 threads, and a Titanium Nitride gold finish that holds up and cleans easier than bare stainless.
It’s the right move if you want to run a comp or suppressor on a compact-length P320 without gambling on off-brand tolerances.
Fitment
- Fits SIG Sauer P320 Compact and P320 X-Carry slide lengths
- Caliber: 9mm
- Thread pitch: 1/2x28 for common 9mm comps and suppressors
- Finish: Titanium Nitride gold
- Construction: 416R stainless steel with SAAMI-spec 9mm rifling
- Threaded models use 1/2x28 and commonly include a matching thread protector
Does NOT fit
- Does not fit P320 Full Size slide length
- Does not fit P320 Subcompact slide length
- Does not fit other SIG platforms like P365
- Assumption: this is specifically the Compact/X-Carry length barrel. If your slide is not Compact or X-Carry, verify your exact slide length before ordering
Tools needed
- None for basic swap
- Cleaning supplies for barrel break-in and maintenance
- If you install a muzzle device: the correct wrench tool for that device and proper thread locker as required by the device maker
Install notes
- Field strip the pistol and swap the barrel like a normal P320 barrel change
- Before range use: do a function check, confirm smooth lockup, and ensure the slide cycles freely
- If running a comp or suppressor: confirm shoulder engagement and alignment, then test with a few rounds before you go full send
- Use the thread protector when you are not running a muzzle device to protect the threads
Any required warnings/notes
- Return prevention: this fits P320 Compact/X-Carry slide length only. Verify your slide length before ordering
- Threaded barrels can require suppressor-height sights depending on your setup
- Always verify local laws and range rules for threaded barrels and suppressor use
