The SIG Sauer FOXTROT-MSR Full Size delivers 1,350 lumens and 33,000 candela with the longest runtime in the family — up to 1.5 hours from its rechargeable 18650 cell.
The 6061 aluminium housing is optimised for carbines and personal-defence rifles, with a remote tape switch (SureFire-compatible plug) plus integrated push-button for momentary and latching control. Scout-mount compatible, with Picatinny and M-LOK interfaces in the box.
How It Compares
Tighter rail space? The FOXTROT-MSR Compact (18350). Compare rifle lights in our guide, decode the output figures with the lumens vs candela chart, and browse all weapon lights.
Ideal For
- AR-15s and full-size carbines
- Home-defence and duty rifles
- Longer sessions needing maximum runtime
Key Features
- 1,350 lumens / 33,000 candela
- Rechargeable 18650 (included); up to 1.5 h
- Remote tape switch — SureFire-compatible plug
- Push-button: momentary / latching
- Scout-mount compatible; Picatinny + M-LOK included
Technical Specifications
| Output |
1,350 lumens / 33,000 candela |
| Runtime |
Up to 1.5 h |
| Battery |
18650 rechargeable (included) |
| Switching |
Remote tape switch + push-button |
| Mounting |
Scout-compatible; Picatinny & M-LOK interfaces |
| Housing |
6061 aluminium, black anodised |
| MPN / UPC |
SOFR1FS0 / 798681675050 |
What's Included
- FOXTROT-MSR Full Size light, 18650 battery, tape switch, Picatinny + M-LOK mounts, manual
UK Delivery & Support
UK-stocked and dispatched tracked from our UK warehouse — no import duties or customs delays — backed by UK-based support and SIG Sauer's warranty.
Frequently Asked Questions
How does it differ from the Compact?
Same output and switching — the Full Size runs a larger 18650 cell for up to 1.5 h versus the Compact's 1 h, in a slightly longer body.
Does it fit M-LOK handguards directly?
Yes — both Picatinny and M-LOK mounting interfaces are included.
