With the double stack I carry this around with me at work when I sweep the parking lot in the morning. I use it to convince certain somethings from sleeping in planters or turning the starbucks patio into a campground. Its so much fun. I love it. I need more spare mags. The grip fits my mitts just right and the sock fits tightly with zero wobble. Working on the 2nd stage in a week or so. Do your resaerch. Naptown nerf has a well done 3 stage build. For more than 1 stage a graphene battery and mosfet are a must.