>>5349731>blasters to look intoThis largely depends on your expected play style and budget. My personal go-tos are either a stryfe or an elite alpha trooper.
Stryfe is flywheel powered, so you'll be a bit noisy and you have a small rev up time that *could* get you killed in a pinch. However it is completely semi auto, which is a huge boon for HvZ. The elite alpha trooper is almost twice the size as the stryfe, but very close to the same weight. It is a pump action, spring powered blaster with slam fire (hold trigger + continue pumping = 1 dart each pump).
Both take the nerf clips which you'll want to grab more of the 18 dart 'sticks' since they only come with tiny 6 dart clips. The stryfe sits at $20-25 and the elite alpha trooper is $~30. I'll give other good choices if these won't work.
> How to ModFor what you're doing, there are 2 major kinds of mods, both depend on the power source of the blaster.
For a springer like the alpha trooper, the main thing is to get a better spring. Note that this will make it harder to prime, so there is such thing as too much. If you do t want to invest the time searching g for the right size and power of spring, you can do what I did and just order a kit from various after market nerf parts makers. I slapped an Orange Mod Works kit in mine and it's great. But like I said earlier harder to prime and makes slam fire difficult.
For a flywheel blaster though, there's quite a bit to do. You'll need to work with wiring, possible replace the motors, a new battery power source and appropriate charger. So there's some good news and bad news. Good news is a new (lipo) battery costs about $8-16, bad news is a charger is around $50. Also if you plan to use a higher voltage battery (14volts vs ~7), new motors are a must which is another $5-9 apiece. But all this will give you a blaster that howls when revving and shoots around 120 feet per second.
In both cases you'll have locks to remove, but that's mostly a case by case thing.