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Duty Arms Index

Weapon light evaluation memo: SureFire X300 Ultra (X300U) vs Streamlight TLR-7 X

Prepared Oct 12, 2026 from Duty Arms Index; agency data as of Oct 11, 2026. Specs as published by each maker, checked Oct 11, 2026.

Live page, sources and updates
Version comparedSureFire X300 Ultra (X300U)SureFire X300U-B (T-slot thumbscrew)Streamlight TLR-7 XStreamlight TLR-7 X
Made forNot publishedNot published
MountT-slot thumbscrew clamp attaches securely to Universal and Picatinny rails found on most handguns. [1]Rail-grip clamp securely attaches/detaches without putting your hands in front of the muzzle [2]
Pistol fitment (maker's stated)Not publishedNot published
Output1,000 lumens [1]725 lumens [2]
Peak beam intensity11,300 candela [1]9,500 candela [2]
Beam distance213 meters [1]195 meters [2]
Runtime (maker's stated)1.25 hours [1]1.00 hours [2]
Test standard (as stated)Not publishedNot published
LaserNot publishedNot published
BatteryTwo 123A (incl.) [1]SL-B9 Rechargeable Battery Pack, CR123A Lithium [2]
Switch / activationAmbidextrous push/toggle [1]Ambidextrous rear paddle switches with HIGH and LOW options [2]
Remote / pressure switch optionsAccepts optional pressure-activated DG and XT remote switches [1]Not published
Length3.76 in (9.55 cm) [1]2.58 inches (6.55 centimeters) [2]
Weight4.1 oz (116 g) [1]2.64 ounces (74.84 grams) [2]
Body materialAluminum [1]Not published
Water rating (maker's stated)IPX7 [1]IPX7 waterproof to 1m for 30 minutes [2]
Maker list price$379.00 - $399.00 [1]Not published
Agencies issuing (current entry)6 of 51 agencies with a sourced weapon light5 of 51 agencies with a sourced weapon light
Most common host weaponGlock G17 Gen5 (1)Glock G45 MOS (4)

Notices

No recalls, safety statements or agency actions on file for either model.

Sources

  1. [1] X300U-B WeaponLight. SureFire. Accessed Oct 11, 2026. https://www.surefire.com/x300u-b-weaponlight/ (archive: https://web.archive.org/web/2026/https://www.surefire.com/x300u-b-weaponlight/)
  2. [2] TLR-7 X. Streamlight. Accessed Oct 11, 2026. https://www.streamlight.com/products/detail/tlr-7-x (archive: https://web.archive.org/web/2026/https://www.streamlight.com/products/detail/tlr-7-x)

Not a recommendation. Duty Arms Index records what agencies issue and what makers publish; it does not test, rate or endorse equipment. Specs are copied as published by each maker for the version named and can change without notice; output, battery-life and water figures are the maker's own and may use different test conditions. Verify with the manufacturer before purchase or policy decisions. Agency counts cover agencies with a sourced entry in the index, not all US agencies.

https://dutyarmsindex.com/compare/lights/surefire-x300u-vs-streamlight-tlr-7x?va=surefire-x300u-b