I will add one more to those who dont like detachable box mag mods to fixed mag SKS models. the sks is a good little rifle that runs well with the fixed mag, and can be fed fast with stripper clips, so long as the ejection port is not covered by optics (this is a good application for a scout mount). However, it is seldom that i have seen a modified sks feed reliably from a detachable magazine modification. Id rather have 10rnds i KNOW will feed than 30 that might.