[mojo]

I would start here ( http://www.x-fire.org/e.index.htm )
and I thought the hop-up in the ASR was the same as a VSR?

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Modified....

so just found on line it is APS compatible.
I would recommend the PDI Hop-up.

..

 

[mojo]

RedWolf Airsoft is reliable.. yes...
but sometimes their stuff gets bogged down by customs occasionally...
I have had small packages of insignificant stuff held up by customs for months.

Just something to consider..