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Description
A steel optic plate that mounts a Trijicon RMR, RMR HD, SRO or RCR on the slimline Glock 43X MOS and Glock 48 MOS.
G43X and G48 MOS slides are cut for direct mounting of the Shield RMSc. The Trijicon RMR is longer and wider and needs an adapter plate, which raises the mounting surface. The OPF-G43X/48, RMR adds recoil lugs and a front recoil fence that together hold the sight immobile, instead of leaving the screws to do it.
Because the RMR is longer than the G43X/48 MOS cut, the sight overhangs the slide. A large lightening cut on the underside removes unneeded weight and is hidden once installed.
Key features
- Lugs and front fence — Recoil lugs and a front recoil fence hold the sight still before the screws are even torqued.
- 4140 steel — Machined from 4140 steel and black nitrided.
- Hardware included — Supplied with plate-to-slide screws and T15 sight-to-plate screws.
- Hidden lightening cut — Weight is removed from the underside, out of sight when the plate is in use.
Compatibility and fitment
- Fits the Glock G43X MOS and G48 MOS only. It will not work with other Glock models.
- Does not fit the special-run FDE G43X, whose MOS pocket is different.
- Sights: Trijicon RMR, SRO, RMR HD and RCR.
- Backup sights: a lower 1/3 co-witness needs a sight set with a front sight of at least 0.450 in, such as the Ameriglo GL-527; the sight tips sit low in the window. The RMR HD and RCR need the taller Ameriglo GL-808 (0.500 in front sight). With the GL-808, install the plate first and the rear sight last.
- A torque wrench graduated in in·lb is needed to tighten the screws to the stated values.
Technical specifications
| Material | 4140 steel |
| Finish | Black nitride |
| Weight | 1.21 oz (34 g) |
| Plate-to-slide torque | 20 to 25 in·lb (2.3 to 2.8 N·m) |
| Sight-to-plate torque | 12 to 15 in·lb (1.4 to 1.7 N·m) |
In the box
- 1 × OPF-G43X/48, RMR plate
- 2 × plate-to-slide screws, M4-0.7 × 9 mm
- 4 × sight-to-plate screws, T15, 6-32 × 3/8 in
- 1 × packet of Vibra-Tite VC-3 threadlocker
Model information
| Brand | Forward Controls Design |
| Model | OPF-G43X/48, RMR / RMR HD / RCR — Glock 43X/48 MOS plate for Trijicon RMR, SRO, RMR HD and RCR |
| MPN | OPF-G43X/48, RMR |