Basic Upgrade for SRS 2.8 Joules (Piston, Cylinder and Spring) SP-WADNS-147 but you must fine-tune it

but you must fine-tune it after installing the mount and the wheel

Detector type: 12 μm VOx uncooled focal plane arrays

The NVG is built with a compact composite housing for increased durability and features advanced multi-coated optics

Material: High-quality metal

Operating Temperature -20°C to 55°C (-4°F to 131°F)

Basic Upgrade for SRS 2.8 Joules (Piston, Cylinder and Spring) SP-WADNS-147 but you must fine-tune itThe starter pack for your Silverback SRS. This upgrade makes your SRS more consistent and quieter! The package includes the following Stalker upgrades! Scorpion Piston SRS (Ultimate Edition) Teflon Lightweight Cylinder For SRS A1 A2 Official Logo Patch We firmly believe that Rapax springs are the best springs on the market. The results with these spring and Stalker upgrades are perfect. Rapax 2. 8 J spring made for SRS TAC41 SSG VSR (includes spacers