hi guys
i think the scrathing is caused by the spring. it is bigger one end and if fitted the wrong way round it seems to do this. the tighter end needs to be on the bolt.
cheers roy.
its no scratching its a gouge,yes many minis get light marking on the bolt, this caused possibly by spring, heave gouge diff storry,
ps if u have heavy gouge on bolt check the bolt guide as well, heavy chaffing/gouge has apeared on both my returned minis, 1st time replaced,second time (, i had enough taken a refund, by the way i origannaly bought 2 minis , 1 of which still perfect to this day (2 months later)
to me this damage is caused by a bad mating fit bolt/bolt guide or possibly the housing
i can garauntee springs were on correctly no grit in lube, lol these were new from factory, yes i had removed bolt before firing to check factory had lubed them,but pop out push back in only