My marker of choice is my nexion. Its a good marker even though its a lil pricey. With a few upgrades you can definetly compete @ a higher level. Even if you leave the marker stock its still a good marker. However the 1 upgrade i recomend from expereince is the kingman anti chop bolt. Also you might run into a problem that the gun sometimes has to be recocked . That problem has noting to do with "bad maching" like it was said in this forum. You can easily fix that problem by using grease instead of oil on the hammer. The bolt however you just use oil. Through trial and error i finally found a grease that wont harm my orings and is @ a good price. It is called "JUDDY BUTTER" . You can find it @ bike shops. If they dont have that brand ask for a suspension lube for busings and o rings. You will find that your marker will be fixed of that problem for $5.00 you save your self a big headache trying to figure out the problem when its that. IF YOU GOT ANY QUESTIONS OR COMMENTS FEEL FREE TO REPLY................
your supposed to use silicone grease, found at almost any hardware store, or special lube made specially for low pressure guns bought at paintball shops and online stores. but i guess if it works its alright...