HC509 COMPENSATOR FOR FN 509

6 model listings

• FN 509 MidsizeSource needs review
• FN 509 Compact MRDManufacturer documentedRequires a THREADED BARREL in 1/2-28. Most of these pistols do not ship with one — check your barrel before buying. Compatibility (read 2026-09-21): "FN509 (Tactical) Full Size, Mid-size, and Compact with 1/2-28 threaded barrels." MRD rows are the optic cut of those sizes. Not compatible with Bar-Sto, KKM, or EFK barrels. CC EDGE, LS EDGE, 509C, 510, and 545 are not named.
• FN 509 Midsize TacticalManufacturer documentedRequires a THREADED BARREL in 1/2-28. Most of these pistols do not ship with one — check your barrel before buying. Compatibility (read 2026-09-21): "FN509 (Tactical) Full Size, Mid-size, and Compact with 1/2-28 threaded barrels." MRD rows are the optic cut of those sizes. Not compatible with Bar-Sto, KKM, or EFK barrels. CC EDGE, LS EDGE, 509C, 510, and 545 are not named.
• FN 509 Midsize MRDManufacturer documentedRequires a THREADED BARREL in 1/2-28. Most of these pistols do not ship with one — check your barrel before buying. Compatibility (read 2026-09-21): "FN509 (Tactical) Full Size, Mid-size, and Compact with 1/2-28 threaded barrels." MRD rows are the optic cut of those sizes. Not compatible with Bar-Sto, KKM, or EFK barrels. CC EDGE, LS EDGE, 509C, 510, and 545 are not named.
• FN 509 Fullsize MRDManufacturer documentedRequires a THREADED BARREL in 1/2-28. Most of these pistols do not ship with one — check your barrel before buying. Compatibility (read 2026-09-21): "FN509 (Tactical) Full Size, Mid-size, and Compact with 1/2-28 threaded barrels." MRD rows are the optic cut of those sizes. Not compatible with Bar-Sto, KKM, or EFK barrels. CC EDGE, LS EDGE, 509C, 510, and 545 are not named.
• FN 509 FullsizeManufacturer documentedRequires a THREADED BARREL in 1/2-28. Most of these pistols do not ship with one — check your barrel before buying. Compatibility (read 2026-09-21): "FN509 (Tactical) Full Size, Mid-size, and Compact with 1/2-28 threaded barrels." MRD rows are the optic cut of those sizes. Not compatible with Bar-Sto, KKM, or EFK barrels. CC EDGE, LS EDGE, 509C, 510, and 545 are not named.