Save money on STIHL guide bars and saw chains by purchasing them as a STIHL 2+1 Cut Kit compatible with the MS 261, MS 271, MS 291, MSA 300. These kits include one 20″ bar and two 23 RM3 81 chains, taking the guesswork out of finding the right guide bar and saw chain combination for your chainsaw. With clear labeling, it’s easier to keep your chainsaw operating at peak performance.