AGM Rattler-C V2 35-384 Thermal Clip-On Attachment

The AGM Rattler-C V2 35-384 is a front-mounted thermal clip-on a thermal imaging unit that attaches in front of an existing daytime riflescope to give it thermal imaging capability. The day scope's reticle, magnification, and zero stay in use; the Rattler-C V2 projects the thermal image through the day scope's objective, so a hunter looks through the day scope as normal and sees a thermal image in place of (or in addition to) the daytime view.

The 35-384 sits at the 384 sensor tier of AGM's Rattler-C V2 clip-on family. It pairs a 384—288 thermal sensor built on a 12 μm pixel pitch with NETD rated at less than 20 mK at 25°C to a 35 mm F/1.0 germanium objective lens, delivering 1,800-yard detection on a 6-foot target through a 0.39-inch 1024—768 OLED display at 50 Hz refresh.

The Rattler-C V2 lineup at Thermal Bros how the 35-384 fits

Thermal Bros carries two clip-ons from the AGM Rattler-C V2 family. They're curated as a good/better pair the 35-384 as the accessible entry into the V2 clip-on platform at the 384 sensor tier, and the 50-640 as the step-up at the 640 sensor tier for hunters who want higher pixel count and the larger 50 mm lens.

• AGM Rattler-C V2 35-384 35 mm lens, 384—288 sensor, <20 mK NETD, 7.5° — 5.6° field of view, 1,800 yd detection range. The 384-tier option.
• AGM Rattler-C V2 50-640 50 mm lens, 640—512 sensor, larger objective and higher-resolution sensor. The 640-tier option.

The two clip-ons share the V2 platform 50 Hz refresh rate, 1— optical magnification, 0.39-inch 1024—768 OLED display, shot-activated and manual recording with audio, stadiametric distance measurement, Hot Track, Wi-Fi hotspot via the AGM Connect app, IP67-rated build, and the NE-4400 rechargeable battery system with 11 hours of runtime per battery. Sensor resolution and lens size are what separate them.

Hold at the 35-384 when 384-tier thermal resolution at 1,800-yard detection is enough for the hunting, and when the price point and lighter overall package matter.

Why a thermal clip-on instead of a dedicated thermal scope

A clip-on is a different solution to the night hunting problem than a dedicated thermal rifle scope.

A dedicated thermal scope replaces the day scope entirely. The hunter mounts the thermal, zeros it to the rifle, and uses the thermal's own reticle and magnification. One scope, one rifle, one zero.

A clip-on attaches in front of the existing day scope. The day scope's reticle, magnification, and zero stay in use the clip-on just projects the thermal image into the day scope's optical path. The same clip-on can move between rifles, mounting in front of whichever day scope is on the rifle for that hunt, without re-zeroing the day scope each time.

For hunters running thermal on a single rifle that hunts only at night, a dedicated thermal scope is usually the cleaner solution. For hunters who use the same rifles in daylight and want thermal capability available across one or more existing setups without buying a separate thermal scope for each, a clip-on lets one thermal unit serve multiple rifles.

Why the 384 sensor at sub-20 mK NETD matters

The 384—288 sensor delivers 110,592 pixels of thermal data, paired with a 12 μm pixel pitch and NETD rated at less than 20 mK at 25°C. Lower NETD means the sensor can resolve smaller temperature differences before electronic noise washes them out better sensitivity for picking up game-sized targets against cool backgrounds, holding image quality in fog, light rain, or low ambient temperature differential.

The 384 sensor tier is a meaningful pixel-count step over 256 sensors (roughly 2.25— the pixel count) and a step down from 640 sensors. Combined with the sub-20 mK NETD, the 35-384 produces a refined thermal image at the 1,800-yard detection range AGM publishes for this product.

Why the 35 mm objective lens earns its place

A 35 mm F/1.0 germanium objective gathers thermal signal across a 7.5° — 5.6° field of view at 1— optical magnification. The lens size sets the balance between thermal reach and the physical footprint added to the rifle.

A larger objective (like the 50 mm on the 640-tier Rattler-C V2 50-640) pulls more thermal signal and extends detection further but adds weight and length to the rifle's front end. The 35 mm objective on the 35-384 keeps the clip-on compact and front-light while still delivering 1,800-yard detection on a 6-foot target.

Why the Rattler-C V2 platform is different

Three things define the Rattler-C V2 platform on the 35-384:

• 1— pass-through optical design. The clip-on operates at 1— optical magnification. The day scope behind it provides the actual magnification whatever the hunter has in the day scope is what they get when the clip-on is mounted. No second magnification stack, no compounded zoom degradation.
• NE-4400 dual-battery field-swap system. Two NE-4400 rechargeable lithium-ion batteries ship in the box. The battery compartment is built for fast field swaps pull the depleted battery, drop in the charged spare. 11 hours of runtime per battery at 25°C with the Wi-Fi hotspot off.
• Onboard recording with stadiametric distance measurement and Hot Track. Manual photo, video, and audio recording, snapshot capture, and shot-activated video recording are built in, saving to 16 GB internal EMMC. AGM's stadiametric distance measurement function and Hot Track feature are both listed in the published spec.

What you get with the Rattler-C V2 35-384

• 384 — 288 thermal sensor with 12 μm pixel pitch. Mid-tier sensor resolution on the Rattler-C V2 platform.
• NETD <20 mK (25°C, F#=1.0). Sensor sensitivity that holds image quality in marginal heat differentials and adverse weather.
• 35 mm F/1.0 germanium objective lens. The 384-tier lens option in the Rattler-C V2 lineup.
• 1— optical magnification. Day scope provides the magnification; no compounded zoom path through the clip-on.
• 1,800-yard detection range on a 6-foot object.
• 50 Hz refresh rate for smooth real-time imaging on moving targets.
• 0.39-inch OLED display, 1024 — 768.
• 7.5° — 5.6° field of view.
• 2 m to infinity focus range.
• 22 mm exit pupil; 10 mm eye relief.
• Color palettes: Black Hot, White Hot, Red Hot, Fusion.
• Cold and Warm scene modes to tune the sensor for the environment.
• Flat field correction: Auto, Manual, External Correction.
• Stadiametric distance measurement.
• Hot Track.
• Defective pixel correction.
• Shot-activated video recording with manual photo, video, and audio recording also supported.
• Snapshot capture.
• Wi-Fi hotspot with smartphone streaming and file transfer via the AGM Connect app.
• 16 GB internal EMMC storage.
• NE-4400 dual-battery field-swap system. Two rechargeable Li-Ion batteries included; 11 hours per battery at 25°C; USB Type-C charging.
• External power supply compatibility via USB Type-C (5 VDC, 2 A) for use with an external power bank.
• IP67-rated waterproof and dustproof construction.
• Operating temperature range -30°C to +55°C (-22°F to 131°F).
• AGM 5-year manufacturer warranty.

Who the Rattler-C V2 35-384 is built for

• Hunters who already run a daytime riflescope setup they want to keep using and want to add thermal capability without buying a dedicated thermal scope
• Hunters who use the same thermal unit across more than one rifle, with adapter rings sized to fit each rifle's day scope objective
• Hog and predator hunters who want 384-tier thermal resolution at 1,800-yard detection on top of their existing daytime optic
• Buyers who want the Rattler-C V2 platform features sub-20 mK NETD, 50 Hz refresh, Wi-Fi hotspot, dual-battery system, shot-activated recording at the 384 sensor tier rather than the higher 640 tier
• Hunters who want a compact clip-on footprint over a larger 50 mm lens

The Rattler-C V2 35-384 is less ideal for hunters who don't already have a daytime riflescope they want to keep using (in which case a dedicated thermal scope is usually the cleaner solution), or for hunters whose engagement window or hunting conditions warrant the higher-resolution 640 sensor in the Rattler-C V2 50-640.

Full specifications

• Thermal sensor: 384 — 288, 12 μm pixel pitch
• Sensor architecture: 12 μm VOx uncooled focal plane array
• NETD: <20 mK (25°C, F# = 1.0)
• Objective lens: 35 mm F/1.0 germanium
• Optical magnification: 1—
• Field of view: 7.5° — 5.6°
• Detection range: up to 1,800 yards (6-foot object)
• Display: 0.39-inch OLED, 1024 — 768
• Refresh rate: 50 Hz
• Focus range: 2 m to infinity
• Exit pupil: 22 mm
• Eye relief: 10 mm
• Color palettes: Black Hot, White Hot, Red Hot, Fusion
• Scene modes: Cold, Warm
• Flat field correction: Auto, Manual, External Correction
• Distance measurement: stadiametric
• Hot Track: yes
• Defective pixel correction: yes
• Standby mode: yes
• Snapshot capture: yes
• Wi-Fi hotspot: yes (AGM Connect app)
• Recording: photo, video, audio; shot-activated and manual
• Internal storage: 16 GB EMMC
• Battery system: NE-4400 rechargeable Li-Ion (two included), field-swappable
• Battery life: 11 hours per battery (25°C, hotspot off)
• External power: 5 VDC, 2 A, USB Type-C
• Operating temperature: -30°C to +55°C (-22°F to 131°F)
• Construction: IP67 waterproof and dustproof
• Dimensions: 7.2 — 2.7 — 2.6 in (184 — 68 — 67 mm)
• Weight: 1.19 lb (0.54 kg)
• Mount: included
• Warranty: AGM 5-year manufacturer warranty

In the box: thermal clip-on, mount, two NE-4400 rechargeable batteries, battery charger, USB cable, lens cloth, owner's manual, carrying case.

Frequently asked questions

Where does the 35-384 fit in Thermal Bros' Rattler-C V2 lineup?

Thermal Bros carries two clip-ons from the AGM Rattler-C V2 family. The 35-384 is the 384-tier option a 384—288 sensor with sub-20 mK NETD on a 35 mm objective lens, 1,800-yard detection range. The 50-640 is the step up to the 640 sensor tier with a larger 50 mm objective. Step up to the 50-640 when the higher sensor resolution and the additional reach of the 50 mm lens are the deciding factors.

How is a thermal clip-on different from a dedicated thermal scope?

A clip-on attaches in front of an existing daytime riflescope. The day scope's reticle, magnification, and zero stay in use the clip-on projects the thermal image through the day scope. The same clip-on can move between rifles, mounting in front of whichever day scope is on the rifle. A dedicated thermal scope replaces the day scope, has its own reticle and magnification, and zeros to the rifle on its own. Clip-ons are typically the better fit for hunters running multiple rifles or wanting to keep an existing day scope in use; dedicated thermal scopes are typically the better fit when a single rifle hunts at night only.

Do I need to re-zero my day scope when using the clip-on?

The clip-on uses the day scope's existing reticle and zero. The day scope is not re-zeroed for thermal use. Hunters typically confirm alignment by checking impact on a target after the clip-on is mounted; minor adjustments to the clip-on's image alignment are made through the device menu rather than by changing the day scope's zero.

Will the 35-384 fit my day scope?

The Rattler-C V2 mounts in front of the day scope using an AGM front Q-R adapter sized to match the day scope's objective diameter. AGM offers adapters in multiple sizes (40 mm, 42 mm, 44 mm, 50 mm, 56 mm, 58 mm, 60 mm, and 62 mm) as separate accessories. The adapter required depends on the specific day scope's objective. Confirm objective diameter and adapter size before ordering.

How long does the battery last?

11 hours per battery at 25°C with the Wi-Fi hotspot off. Two NE-4400 rechargeable batteries ship in the box, and the compartment is built for fast field swaps. An external 5 V power bank can also be connected via USB Type-C to extend operating time.

Does the 35-384 record video?

Yes. Manual video and audio recording, snapshot capture, and shot-activated recording are all built in. Files save to 16 GB of internal EMMC storage and can be transferred via USB Type-C or streamed and downloaded over Wi-Fi through the AGM Connect app.

What's the detection range?

AGM publishes 1,800 yards detection on a 6-foot object. Detection is the distance at which the sensor can register that something warm is present it is not the same as identification or shot-placement distance. Practical engagement distance depends on the day scope's magnification, the target size, and conditions.

Is the 35-384 waterproof?

Yes. The clip-on is IP67-rated sealed against dust ingress and rated for water immersion up to one meter for 30 minutes.

What's the warranty?

AGM backs the Rattler-C V2 35-384 with their 5-year manufacturer warranty.