SureFire X300V-B Vampire Infrared Weapon Light with T-Slot Mount - 350 Lumens/120mW - Black
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Overview
The SureFire X300V-B Vampire Infrared Weapon Light is designed to provide versatile lighting solutions for tactical applications, featuring a powerful output of 350 lumens and an infrared illuminator for low-light conditions. With a rail mount system, it securely attaches to your firearm, while the use of two CR123A batteries ensures reliable performance in the field. This light is commonly found in builds with a carbine gas system and a 5.56 NATO caliber, making it a suitable choice for both home defense and tactical operations.
Specifications
SureFire X300V-B Vampire Infrared Weapon Light with T-Slot Mount - 350 Lumens/120mW - Black
Available Merchants(9)
Prices checked
Price Alert
September 2026 on GunPartPicker
SureFire X300V-B Vampire Infrared Weapon Light with T-Slot Mount - 350 Lumens/120mW - Black ranked #28 of the 89 weapon lights builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #23 of the 231 weapon lights builders have added. Builds with this weapon light are mostly chambered in 5.56 NATO (77%, then .223 Wylde 12%), split between carbine-length (48%) and mid-length (32%) gas systems, and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 8 of the 9 retailers we track have it in stock. The best price crept up from $422.99 to $476 over September 2026. Buying today, the lowest price is $455.89 at Optics Planet, above September's low of $422.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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We ranked every light by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Weapon Light Guide →Frequently Built With
The part most often added in each category by the builds that include this one
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EOTECH 3x30.5mm X 21.6mm Holographic Hybrid Green Dot Sight - HHSGRN
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ODIN Works Zulu Adjustable Stock KIT w/ Padded Pistol Buffer Tube & End Plate, Flat Dark Earth
Radian Raptor Charging Handle & Talon Safety Selector Combo - OD Green
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all builds →Builds in the community that include the SureFire X300V-B Vampire Infrared Weapon Light with T-Slot Mount - 350 Lumens/120mW - Black
| Build | Parts | Total |
|---|---|---|
 | 28 | $3961.35 |
 | 37 | $6130.65 |
 | 22 | $2040.16 |
 | 30 | $3306.41 |
 | 18 | $4749.52 |
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