Overview

The Burris Thermal Clip-On C35 Gen 2 400x300 12um (Manufacturer SKU: BO300627, also designated as the BTC35 v2) is a versatile thermal imaging device designed to seamlessly transform standard day rifle scopes into thermal hunting optics. Built for Australian conditions, this clip-on unit eliminates the need to dedicate a rifle entirely to night hunting. It mounts directly in front of your existing day scope, allowing you to spot and track targets through complete darkness, heavy fog, and smoke.

Key Features

• High-Resolution Thermal Core: Equipped with a 400x300 VOx thermal sensor featuring a 12µm pixel pitch, 50Hz refresh rate, and an NETD thermal sensitivity of <50 mK.
• OLED Display: Projects a clear image through a 1024x768 OLED screen.
• Optical Performance: Utilises a 35mm F1.0 manual focus objective lens providing 1x optical magnification, with 2x and 4x digital zoom capabilities for up to 12.7x total system magnification when paired with a day optic.
• Targeting & Detection Tools: Offers Hot Track to highlight the hottest thermal signature, stadiametric range estimation, 10 custom selectable reticles, and 5 color palettes (Black Hot, White Hot, Red Hot, Green Hot, and Blue Hot).
• Robust Connectivity: Features built-in Wi-Fi to capture real-time photo/video and adjust settings remotely via the BurrisConnect app.
• Dual Mounting Interface: Features an M33.5 x 0.75 threaded eyepiece for quick-detach SmartClip adapters, alongside a 1/4-20 interface for M1913 Picatinny quick-detach mounts.

Product Specifications

• Sensor Resolution: 400x300 VOx
• Pixel Pitch: 12µm
• Refresh Rate: 50Hz
• Thermal Sensitivity (NETD): <50 mK
• Objective Lens: 35mm F1.0 (Manual Focus)
• Field of View (FOV): 7.8° x 5.9° (approximately 25m x 19m at 100 metres)
• Display: 1024x768 OLED
• Dimensions: 152 mm (L) x 75 mm (W) x 64 mm (H)
• Weight: 460 grams
• Recoil Rating: 800 g / 1 ms (compatible with .308 Win and .300 Win Mag calibres)
• Waterproof Rating: IP67
• Operating Temperature: -20°C to 50°C
• Power Source: 2x Rechargeable 16340 (RCR123) batteries (internal runtime ≥2 hours at 25°C) or external power via USB-C

Who is the Thermal Clip-On C35 Gen 2 400x300 12um for?

• Australian rural property owners conducting feral animal management — require a lightweight, 460-gram thermal clip-on rifle scope that can be quickly mounted to existing day scopes to identify pest species in complete darkness, utilizing a 400x300 VOx thermal sensor and 12µm pixel pitch to monitor property boundaries and livestock.
• Night hunters targeting pest species in total darkness or heavy fog — need a thermal clip-on rifle scope with an 800 g / 1 ms recoil rating that reliably holds zero when firing standard Australian hunting calibres like .308 Win, while using the 35mm F1.0 manual focus objective lens to resolve targets up to a 1,000-metre detection range.

Less suitable for: long-range observation of targets beyond 1,000 metres or continuous operations exceeding 2 hours without access to spare RCR123 batteries or an external USB-C power bank; for these extended long-distance applications, a larger thermal optic with a 50mm objective lens and high-capacity battery pack is better suited.