Just what I needed. Bought these helix mag inserts to refresh my old mags that I've had for a few years. Its cheaper to rebuild them than to buy new ones. Definitely a good buy.
Q: Is there any way to purchase the BACK shell only? I've found the lip near the door breaks ONLY on the back shell but the front shells tend to last just fine.
Q: For helix magazines the tower is different than the dmag 2, where the dmag 2s require a particular tower to accomadate the shaped projectiles. Do i need any parts to make my helix magazines first strike ready besides the spring?