AGM Rattler V3 LRF 35-384Description 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 35 384 pairs a 35 mm Germanium lens with an industry leading sub 15mK thermal sensor and a new 1920x1080 high resolution display, which combines to produce the best 384 resolution thermal image.