AGM RattlerV3 LRF 35-640DESCRIPTION AND FEATURES Although it seems like just yesterday the celebrated AGM Rattler thermal riflescope family got upgraded with the introduction of the RattlerV2s, the NEW RattlerV3 LRF testifies to the fact that evolution never stops. The RattlerV3 LRF 35 640 pairs a 35 mm Germanium lens with an industry leading sub 15mK thermal sensor and a new 2560x2560 high resolution display, which combines to produce the best 640 resolution thermal image.