Compatibility
Modification required
- Model
- SIG SAUER P320 COMPACT
- Based on
- Manufacturer documented
Based on manufacturer documentation or support information.
Requires a THREADED BARREL in 1/2-28 or M13.5x1 LH. Most of these pistols do not ship with one — check your barrel before buying. Compatibility (read 2026-09-21): "Full size P320's, P320 X Compact, P320 Compact, P320 X Carry (with 1/2-28 or M13.5x1 LH threaded barrels)." Same four configs as the HC320R. Flush-fit notes are build recipes. Not compatible with Bar-Sto, KKM, or EFK. Legion is a spring caveat, not a named host.
Check your exact model and part before ordering. Fitment limits
Member experience
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