I have a sar-1 one right now, maybe 300 rds through it and not really advertising but I have about 6 30rd magazines, 1 40rd magazines and 1 seventy five rd drum and about 800rds left as well , I like it but don't shoot it often enough and the ammo has gone up since I bought it, I have read a little about the 5.45 or ak 74 variants but the ammo appears a lot cheaper and the ergonomics would be identical. Is selling the sar-1 worth it to get a 5.45 variant, for something different, what are the pros and cons of each caliber, what could I get for my sar one and accessories and ammo?