Spear in NZ makes 5/10 and 5/30 magazines for the HK SL8 for anyone looking for less expensive after-market mags.
They are available in either clear or black fiber reinforced.
http://www.spearmags.co.nz/round-blocked-mags-c-3.html
In Canada they are available from Wolverine Supplies www.wolverinesupplies.com.
However, they currently only stock the 5/30.
The 5/30 mags at Wolverine are ~$45, which is much less than the factory HK 5/10 mag price of ~$250.
The spear mags are high quality and well worth the money.
The 5/30 black glass/nylon mag can be cut down to a 5/10 magazines and correctly re-blocked at 5 for Canada.
This is easily done with a band saw and some cleanup work with a file or dremel.
Note however that this procedure in Canada must be done by a registered gunsmith with the mag being properly permanently re-sealed, and then verified by a magazine verifier, and possibly resubmitted to the CFO depending on province.
They are available in either clear or black fiber reinforced.
http://www.spearmags.co.nz/round-blocked-mags-c-3.html
In Canada they are available from Wolverine Supplies www.wolverinesupplies.com.
However, they currently only stock the 5/30.
The 5/30 mags at Wolverine are ~$45, which is much less than the factory HK 5/10 mag price of ~$250.
The spear mags are high quality and well worth the money.
The 5/30 black glass/nylon mag can be cut down to a 5/10 magazines and correctly re-blocked at 5 for Canada.
This is easily done with a band saw and some cleanup work with a file or dremel.
Note however that this procedure in Canada must be done by a registered gunsmith with the mag being properly permanently re-sealed, and then verified by a magazine verifier, and possibly resubmitted to the CFO depending on province.