OPTICAL RIFLESCOPE
PRECISION 3–18×50
3–18×50 · SFP IR · 30 mm tube
Find your focus.
Keep the detail.
PRECISION 3–18×50 combines a 3–18× magnification range with an illuminated second focal plane reticle and a 30 mm tube.
As low as $900.00

OPTICAL SYSTEM
The optical architecture.

Optical coatings
The fully multi-coated lens system reduces surface reflections and supports a bright, clear image.
- Field of view
- 38.2-6.3feet (7.3°-1.2°)
- Eye Relief
- 3.78"- 3.74",( 96 mm-95 mm)
RETICLE & ADJUSTMENT
Reticle. Focus. Adjustment.
The reticle retains its apparent size as magnification changes.
3–18×50 · SFP IR · 30 mm tube

- Reticle type
- Glass Reticle
- Click value
- 1/10 MIL
- Parallax adjustment
- 10yds-∞
- Diopter Adjustment
- ±2.0
BODY & ENVIRONMENT
Engineered around the optics.
The 30 mm tube is constructed from T6063 aluminium alloy. Nitrogen filling helps limit internal fogging when temperatures change.
- Body material
- T6063 aluminium alloy
- Nitrogen filled
- Yes
- Water resistance
- IPX7
TECHNICAL SPECIFICATIONS
The complete specification.
PRECISION 3–18×50
3–18×50 · SFP IR · 30 mm tube
Optics & viewing
| Model | 3-18×50SFPIR |
|---|---|
| Magnification | 3-18× |
| Lens coatings | fully green multi coated |
| Ocular lens diameter | 35 mm |
| Field of view | 38.2-6.3feet (7.3°-1.2°) |
| Exit Pupil | 8 mm - 2.8 mm |
| Eye Relief | 3.78"- 3.74",( 96 mm-95 mm) |
| Objective lens diameter | 50 mm |
Construction & environment
| Tube diameter | 30 mm |
|---|---|
| Exterior Finish | Matte Black |
| Mounting Length | 152 mm |
| Length | 13.5", (343 mm) |
| Body material | T6063 aluminium alloy |
| Nitrogen filled | Yes |
| Water resistance | IPX7 |
Reticle & controls
| Reticle type | Glass Reticle |
|---|---|
| Diopter Adjustment | ±2.0 |
| Click value | 1/10 MIL |
| Max. elevation adjustment range (MOA) | ±50MOA |
| Max. windage adjustment range (MOA) | ±40MOA |
| Parallax adjustment | 10yds-∞ |
KECK / QUALITY ASSURANCE
Quality Assurance: Lifetime warranty applies to manufacturing defects
SUPPLIED WITH THE PRODUCT
In the box.
- Riflescope
- Instruction manual
- Sunshade
- Lens cleaning cloth
- Batteries
- Mounting rings
EXPLORE THE COLLECTION
Compare related configurations.
Explore the collections containing PRECISION 3–18×50 and compare the specifications of related KECK products.



