Paintball

[CJOttawa]

Blackrain et al: the SP-8 is entirely plastic, feed block and surrounding parts included.

As unconventional as this answer is going to seem: Consider selling the SP-8 and buying an SP-1 or the Gog G-1 with interchangeable feed blocks.

I've owned both. There's a lot of wasted space in the SP-8, all for show.

For the price of having that feed neck machined, you could probably buy a brand new SP-1. The SP-1 is far more compact and durable. If I dropped the SP-8 I'd expect pieces to crack. The SP-1 would just bounce. Performance wise, they're identical.

[partimeplaya]

Here is a pic from my phone. Mine has a few hairline cracks I tried to fix with superglue, I would really like a new one, I like playing with my SP-8 sometimes, people like how it looks. Its definitely not my only or go to gun.

[Boss]

I've been in contact with Eric Engler about having a aluminum one made, it might not be price efficient or easy to make but he is looking into it..