Drop-In Builds

Which weapon lights fit your pistol?

A weapon light clamps to the accessory rail under the barrel, and pistol rails are not all the same. Full-size Glocks and the P320 take the common compact lights; the slim Glocks and the P365 need a light made for their rail.

The Short Answer

  • The Streamlight TLR-7A and SureFire X300 fit the Glock 17, 19 and 26 rail and the P320's Picatinny rail.
  • The Glock 43X and 48 only take a light on a Rail frame, and it needs the slimline version of the TLR-7 Sub. The plain frame has no rail.
  • The P365 and P365XL need the P365 version of the TLR-7 Sub.
  • A light-bearing holster is molded around one light, so the holster has to match the light, and a pistol with a light won't go in a holster made without one.
Check Your Own Glock 19 Build

Light and Pistol

Every pistol light we list, checked on each pistol's rail.

Streamlight TLR-7A

  • Fits Glock 17, 19 and 26 · Sig P320
  • Won't fit Glock 43X/48 Rail frame This light is made for the Glock accessory rail or 1913 Picatinny rail; this pistol has the Glock 43X/48 Rail frame.
  • Won't fit Glock 43X/48 standard frame This frame has no accessory rail, so there's nothing to mount a light on. Choose a Rail frame.
  • Won't fit Sig P365 and P365XL This light is made for the Glock accessory rail or 1913 Picatinny rail; this pistol has the P365 rail.

SureFire X300U-A

  • Fits Glock 17, 19 and 26 · Sig P320
  • Won't fit Glock 43X/48 Rail frame This light is made for the Glock accessory rail or 1913 Picatinny rail; this pistol has the Glock 43X/48 Rail frame.
  • Won't fit Glock 43X/48 standard frame This frame has no accessory rail, so there's nothing to mount a light on. Choose a Rail frame.
  • Won't fit Sig P365 and P365XL This light is made for the Glock accessory rail or 1913 Picatinny rail; this pistol has the P365 rail.

Streamlight TLR-7 Sub, Glock 43X/48 Rail

  • Fits Glock 43X/48 Rail frame
  • Won't fit Glock 17, 19 and 26 This light is made for the Glock 43X/48 Rail frame; this pistol has the Glock accessory rail.
  • Won't fit Glock 43X/48 standard frame This frame has no accessory rail, so there's nothing to mount a light on. Choose a Rail frame.
  • Won't fit Sig P320 This light is made for the Glock 43X/48 Rail frame; this pistol has the 1913 Picatinny rail.
  • Won't fit Sig P365 and P365XL This light is made for the Glock 43X/48 Rail frame; this pistol has the P365 rail.

Streamlight TLR-7 Sub, Sig P365/XL

  • Fits Sig P365 and P365XL
  • Won't fit Glock 17, 19 and 26 This light is made for the P365 rail; this pistol has the Glock accessory rail.
  • Won't fit Glock 43X/48 Rail frame This light is made for the P365 rail; this pistol has the Glock 43X/48 Rail frame.
  • Won't fit Glock 43X/48 standard frame This frame has no accessory rail, so there's nothing to mount a light on. Choose a Rail frame.
  • Won't fit Sig P320 This light is made for the P365 rail; this pistol has the 1913 Picatinny rail.

Holster and Light

Glock 19 holsters we list, checked against each light. Other pistols work the same way.

Vedder LightTuck IWB, Glock 19

  • Won't fit Streamlight TLR-7A · SureFire X300U-A A pistol with a light won't go into a holster made without one. Choose the light-bearing version.

Vedder LightTuck IWB, Glock 19 + TLR-7A

  • Fits Streamlight TLR-7A
  • Won't fit SureFire X300U-A This holster is molded for a TLR-7A, not the SureFire X300U-A.

Vedder LightTuck IWB, Glock 19 + X300

  • Fits SureFire X300U-A
  • Won't fit Streamlight TLR-7A This holster is molded for a X300, not the Streamlight TLR-7A.

Parts Worth a Look

Our picks from the Glock 19 catalog, with the lowest price we list (prices last checked Oct 4, 2026).

Weapon Light

Streamlight TLR-7A

500 lm · Glock and 1913 rail keys

$134.99 at Primary Arms (sample price)

SureFire X300U-A

1,000 lm · Universal and Picatinny mounts

$379.00 at Brownells (sample price)

Holster

Vedder LightTuck IWB, Glock 19

Kydex IWB · Optic cut · Open bottom

$64.99 at Brownells (sample price)

Vedder LightTuck IWB, Glock 19 + TLR-7A

Kydex IWB · Carries TLR-7A · Optic cut · Open bottom

$74.99 at Brownells (sample price)

Vedder LightTuck IWB, Glock 19 + X300

Kydex IWB · Carries X300 · Optic cut · Open bottom

$74.99 at Brownells (sample price)

Start from a Complete Build

Every part already checked to fit. Open one in the builder and swap anything you like.

Budget Glock 198 parts, $632.88 at the lowest prices we listBest Value Glock 199 parts, $1,147.91 at the lowest prices we listPremium Glock 199 parts, $1,456.91 at the lowest prices we list

Sources

Updated Oct 5, 2026.

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