Uploaded January 2023 | Updated September 2026, 2 weeks ago

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This is a step-by-step guide for the installation of the TLR-8® sub weapon-mounted light from Streamlight.

The TLR-8® sub securely attaches to select subcompact handguns: GLOCK® 43X MOS/48 MOS and GLOCK® 43X RAIL/48 RAIL, SIG SAUER® P365® and SIG SAUER® P365® XL, and the Springfield Armory® Hellcat® – as well as select 1913 short railed subcompact handguns including the Smith & Wesson® M&P® M2.0® subcompact, Beretta® Px4 Storm subcompact, Springfield Armory® XD-E™, Springfield Armory® XD-S®, and Heckler & Koch® HK45 compact.

TLR-8® sub Compatibility List: streamlight.com/docs/default-source/compatibility-list/tlr-7sub_compatibilitylist.pdf

TLR-8® sub Product Page: streamlight.com/products/detail/tlr-8-sub

TIMESTAMPS
0:00 Introduction
0:17 Attaching the light to your rail
0:57 Rear switch options
1:14 Rear switch removal/installation
1:37 Battery installation

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