SBS
Gold $$ Contributor
If you will look in the center section of that link, you will see the parts that are unique to other models and there is a clear picture of the receiver insert for a 510 and it is marked "510" underneath the picture. I have one of these in my 513T. Of course it converts it to strictly a single shot and not very handy to switch back and forth. If you want one of this series for hunting, the 521T (Junior Target model) is the best one. It has the barreled action of the clip fed 511 sporter, but a target stock styled like the 513T, just smaller. Also a tad shorter for juniors, but this can be remedied with a recoil pad. Makes a nice light sporter with a stock that works well with a scope. Generally the sporter versions of this series of rifles have low comb stocks designed for sporting iron sights, with which they were equipped.Unfortunately the Numrich schematic listed under 510 is of a 512~
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