If you are looking for an airsoft DMR AEG with a programmable trigger, you might to check out the Classic Army M110 ECS DMR that Airsoft GI features in this video... "Mike takes a look at the upcoming Classic Army M110 ECS - The only M110 in the world currently featuring the robust Classic Army programmable trigger unit! Extend your switch's lifetime, enjoy snappy, crisp trigger response, and lock your gun into semi automatic fire modes for DMR realism. Check it out!"