Tippmann A-5 RT, the trigger system on the Tac-1 is very much like a RT (response trigger) but so much easier pull.
tippmann a5 with a whole bunch of goodies on it
Out of the box tac-1's do not include an ASA or Macro line hose, so that's a must. If you plan on using Halo or Empire type hoppers then you'll need to get a different feed neck (feedneck uses angel-type threadings)
Very reliable, no batteries yet can exceed 15 rps, can clean it with a hose.
Oil hungry, only operates off compressed air (very mundane weaknesses in my opinion)
Performance: Very well put together piece of equipment, EXTREMELY reliable. The trigger is not reset by either a spring or a magnet, instead, upon depressing the trigger, it is reset entirely by a response system much like the one by Tippmann, this adds up to firing rates of up to 20 rps and zero fatigue. The stock barrel is a J&J Ceramics 2-peice, this aids aids in superb out-of-the-box accuracy. But if you want a custom barrel, the Tac-1uses auto-cocker barrel threading.
Maintenance: Maintaining the Tac-1 is rather strict but very simple and easy to do. As mentioned earlier, the Tac-1 loves oil before and after play (AGD provides a descent amount of it in the box). Before use, it's a good idea to put about 4 or 5 drops of oil in the ASA receiver before you attach the air supply. When finished play, disconnect air source and field strip the marker, this can be done by unscrewing the silver screw via allen key located underneath the gun behind the grip. If the back part doesn't immediately slide out the back, pull the trigger once. Another great feature is that the entire bolt assembly come out in one peice. After that, you'll notice a rubber washer between the front bolt and the power tube, remove the front tube by pulling gently and the proceed in oiling that washer (THIS IS MUST DO WHEN MAINTAINING THE TAC-1). After that, just retrace the steps in putting it back together. Other than that, got some hard to reach paint on it? get a garden hose.
Looks: It's nothing you can scare your neighbor into believing it's an M16, but it was definitely designed for the scenario player, along with a comfortably placed fore grip and a Dye sticky grip on the trigger, it's got 3 weaver site rails great for flashlight mounts, night vision, red dot, etc. It's fun to mess with other players on the field who are unfamiliar with it, in my period of use its been recognized as a Shocker, something by Dye (due to the grip I guess), and my personal favorite, an Ion.
Overall it's a great gun. Perfect if your ready to upgrade from a Tippmann, reliable, easy to clean, hard to break, fun to play with. A must for scenario and woods fanatics.