T.REX Lightbar Scout Mount

$5000-$5500

Ships out in 1-2 business days
T.REX Lifetime Warranty
30 Day Return Policy

Rail type

Overview

A common problem with weapon lights once you start running a suppressor: Suppressor shadow. A large, oblong shadow obscuring a large percentage of your light spill. You lose some situational awareness and it splashes light off the side of your suppressor, turning it into a mini-Lightsaber. The Lightbar was designed to extend Scout-style lights further down the rail, cantilevered over suppressors. This puts the weapon-light bezel more in line with the end of the suppressor. Thus, eliminating suppressor shadow and splash off the can.

Short guns can also get cluttered up quickly with pressure pads, weapon lights, IR lights, and IR lasers. Being able to extend the light further off the rail allows for more room on the rail. Currently available for M-LOK, KeyMod, and Picatinny rails.

If you are running a Pro mount, you can pick up an adapter here: T.REX Scout Pro Mount Adapter.

What's Included

1X T.REX Lightbar Scout Mount
2X screws for mounting light body.

Specs

The Lightbar is compatible with: SureFire Scout lights (no PRO models), Modlite, Arisaka, Cloud Defensive Rein/Rein Micro, and Streamlight Rifle lights that use a scout footprint (e.g. ProTac Railmount 1,2 and HL-X Pro).

When mounting the Picatinny Lightbar, be sure to not overtighten the screws. It is a common mistake and it will create issues. The proper torque specs are listed below.

Weight	1.0 oz.
Offset from Rail	0.15" (M-LOK, KeyMod) 0.0" (Picatinny)
Overall Length	4.5"
Light to Mount	25in/lbs
Picatinny	30in/lbs (Use T27 Torx)
M-LOK	30in/lbs (Use T25 Torx)
KeyMod	20in/lbs (Use T15 Torx)
Manufacturer	Arisaka Defense. Available exclusively through T.REX ARMS.
Country of Origin	Made in USA

FAQ

If I remove my suppressor and shoot with the Lightbar protruding past the muzzle device, will there be any problems?

No. Modern weapon lights and the Lightbar can take concussion and carbon like a champ. Just clean your bezel if carbon starts to cloud it.

What suppressors are compatible with the Lightbar?

Some of this will depend on the rail you are using and how slim it is. But we have fit KAC/SureFire cans with Midwest Industries Combat rails, which is one of the slimmest rails on the market. Depending on rail/suppressor combination, you may have to remove the Lightbar to take the can off. We have not tested every configuration possible.

30 Day Return Policy

Return or exchange anytime within 30 days of receipt. Available for domestic orders only. Item must be in new condition and in the unopened original manufacturer packaging. Customer pays return shipping.

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T.REX Lifetime Warranty

Backed for life. If your product ever breaks due to normal use, we will fix or replace it.

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Reviews

4.7

★★★★★ ★★★★★

(3 reviews)

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Reviews

Logan Hansch

★★★★★ ★★★★★ TREX ARMS SCOUT MOUNT/Streamlight PROTAC

Reviewed on Sep 11, 2026 Verified purchaser T.REX Lightbar Scout Mount - M-LOK

This mount worked exactly like I hoped it would. I was having a real issue with the stock mount that comes with a Streamlight ProTac on my duty rifle. Adding this mount cleared up hand space so that my grip on my rifle can be where I want it. I also got rid of most of the shadow that came from my suppressor. Would highly recommend. Everything is made super well, and it mounted up to my issued light with no problems. I have included images in my review with the stock mount and with TREX ARMS SCOUT mount. Just spend the money and get it.

Coyfish

★★★★★ ★★★★★ Very flexible

Reviewed on Aug 26, 2026 Verified purchaser T.REX Lightbar Scout Mount - Picatinny

Mount works very well, locks on tight and stays on. But the arm portion is very flexible, im not sure if its intentional in order to absorb shock , but it seems like it might bend and stay bent if caught in the wrong way.

rugerboy10

★★★★★ ★★★★★ Durable, good quality, Arisaka made

Reviewed on Aug 10, 2026 Verified purchaser T.REX Lightbar Scout Mount - M-LOK

Easy to use and good quality. Arisaka marked. Have mine in a 16 in carbine with L a Streamlight HP-X. Extends the light towards the muzzle. Held up good and no loosening even when dropped on the light.

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