I do not have much technical knowledge about airsoft, but I play at FR for paintball. Yes, paintball! Anyways, the idea of a mac 11 is a little hesitant on my part. It has its good sides (full auto, small size) but since you are only playing every so often go for a good TM AEG like everyone reccommended. Im looking at the new TM m4a1 Full metal, its brand new. Maybe you should look into it. The Mac 11 is definately a worthyable skrimishing sidearm but as a primary, go for something more reliable. I hope my 2 cents helps.