We have narrowed down best HK USP light options.

All recommended lights were purchased and used for a very long extend time on the HK USP before putting them on this guide.

Best Lights For HK USP [9mm, 40SW & 45 ACP]

Disclosure: All products have affiliate links for earning commission to support the website when you purchase



  • Best Overall
  • Best Durability
  • Best For Long Range
  • Best Compact Size
  • Best For Training

Streamlight TLR 1 HL - Best Overall

hk usp 45 tactical tlr 1 hl

Why Get The TLR 1 - The Streamlight TLR 1 is by far the most popular duty grade pistol weapon light for HK USP besides the Surefire X300U.

Upgraded With More Lumen - Now up to 1000 lumens with the HL version with much brighter illumination & throw

streamlight tlr 1 hl beam pattern drone shot

Wide Illumination - Search & ID subjects in the dark with a wide beam coverage area without having to point the muzzle directly towards the target of interest

Easy Toggle Switch - Much easier to press the switch for activation around the large USP trigger guard. Easy two handed and one handed operation.

Serviceable Lens Bezel - Saves money replacing just the bezel instead of the whole light after  force on force simunition training damage.

hk USP 45 tactical streamlight tlr 1 hl

Strobe Mode Added - Dobule tap to activate the strobe to blind threats and other tactical moves in low light


  • 1000 Lumens
  • 15000 Candela
  • 2 CR123A Batteries
  • 4.18 oz
  • 3.39 in
  • IPX7

Surefire X300U - 2nd Best Duty Light

hk usp surefire xh30

Why pick this one - The Surefire X300U with the thumb screw mount is highly recommended to mount on the HK USP rail adapter. 

Balanced Throw & Spill - TIR lens provides a hot spot and wide illumination like the TLR 1 to illuminate far away and also ID things in low light. 

Slide Always In Battery - Extra light bezel length over the muzzle prevents the slide from getting out of battery during point blank muzzle-to-surface contact engagement, or use as a striking device

Mounts Directly To The Rail - Adjustable tension 

Built To Last - Mil-spec grade aluminum housing protects electronic components inside from sharp recoil impulse, drop, and day to day field handling.

Highly recommended - SUREFIRE DG SWITCHES for shooters that can't easily reach the toggle switch 


  • 1000 Lumens
  • 11300 Candela
  • 2 CR123A Batteries
  • 4.8 oz
  • 3.7 in
  • IPX7
hk usp streamlight tlr 7 x

Streamlight TLR 7 X fits flush with the muzzle of the HK USP non threaded barrel. It's a great compact pistol lights that works great and looks slick on the USP full size. 

streamlight tlr 7a beam pattern drone shot

See All Around You - Illuminate up to 40 yards in low light for night shoot, search & personal defense

Adds Only 2.4 Oz - Runs on only 1 CR123A battery (50,000 hours) that can produce up to 500 lumens & 5000 candela

Slim Profile - Doesn't stick out past below the USP trigger guard frame unlike other large size lights

Lowering CR123A Battery Expenses - The SL-B9 battery is rechargeable to help the user save more money on CR123A


  • 500 Lumens
  • 5000 Candela
  • 1 CR123A Batteries or Li-Ion SL-B9
  • 2.40 oz
  • 2.58 in
  • IPX7

Check out TLR 7 X review here

Olight PL Pro - Best Battery Life

hk usp olight pl pro

Why Train With Olight? - The PL Pro's USB charging capability makes this light very cost effective for high volume low light training at home, at classes or at the range. 

High Lumen - Very powerful illumination just like the ones we have recommended above

QD Lever Mount - Mount on the USP adapter rail with the M1913 key and lock it in place

Positive Control Switch - Activation control switch with positive feedback even when wearing gloves

Saves Money On Batteries - Use the light as much as you want and just charge it via a USB cord

Check out Olight PL Pro review here

Full size or Compact

The old school USP pistols come with HK's proprietary rail, and most modern pistol lights will not fit.

The GG&G adapter is the best solution for it.