A one-piece steel optic plate that mounts an Aimpoint ACRO P-1 or P-2 or a Steiner MPS on FN 509 series optics-ready pistols.
The OPF-FN509T, ACRO is a single billet-machined steel plate for FN 509 series slides, built for enclosed-emitter sights on the ACRO footprint.
Key features
-
One-piece steel plate — Billet machined in one piece.
-
Flexible hardware — Supplied with Allen-head plate-to-slide screws; the pistol's own optic cover plate screws can also be used.
Compatibility and fitment
- Pistols: FN 509 series, FN 545 and FN 510. Not compatible with the FN 502 or FN Reflex.
- Sights: Aimpoint ACRO P-1 and P-2 and Steiner MPS. Not guaranteed to work with low-cost copies that use the ACRO footprint.
- Backup sights: the tall suppressor-height sights of the FN 509 Tactical give a low co-witness — the tips of the front and rear sights are visible, the tritium dots are not.
- A torque wrench graduated in in·lb is needed to tighten the screws to the stated values.
Technical specifications
| Material |
Steel, one-piece billet machined |
| Plate-to-slide torque |
13 to 15 in·lb (1.5 to 1.7 N·m) |
| Sight torque — ACRO P-1/P-2 |
26 in·lb (2.9 N·m) |
| Sight torque — Steiner MPS |
20 in·lb (2.3 N·m) |
| Country of manufacture |
USA |
In the box
- 1 × OPF-FN509T, ACRO plate
- Plate-to-slide screws, 6-40 × 3/8 in, 5/64 in Allen drive
- 1 × packet of Vibra-Tite VC-3 threadlocker
Model information
| Brand |
Forward Controls Design |
| Model |
OPF-FN509T, ACRO — FN 509 plate for Aimpoint ACRO P-1/P-2 and Steiner MPS |
| MPN |
OPF-FN509T, ACRO |