If you are looking for realistic paintball markers for training then the Rap4 markers are for you. You need to ask what gen they are before you purchase, the real early Rap4 pistols and rifles do not work correctly and not worth the money...The LE M4,AK47,Latest MP5, Sig and Walther markers work the best,these markers are not designed to hammer 1000's of rounds of paint,they are high maintence for sure...We own about 60 Rap4 markers we use for training and 10 are always down...Be ready and do not expect Tippman toughness, but you want shells that eject,all correct placement of mag releases and actual mag changes...these are for you.......do not buy more paint then you need and the plastic shells are easier on the extractor then the Alum ones............My choice is Walther p99 pistol with 12 gram co2 and MP5 or AK47 with 60 gram co2 tank..... For easier repair and less worry an LE M4 with added 13ci 3000 psi HPA tank or 7oz co2 tank....Remember these are called Ram markers and reboxed by Rap4.com ,made by APSRAM.COM and use .43 cal paint made by Nelson for Rap4.com and chinese paint also imported in that really sucks.........