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Discussion Starter · #1 ·
So, I have recently purchased the Tsd sd702 ( ), which is a rebranded WELL mb07, and is pre-upgraded with metal internals and a stronger spring.
So out of the box, it is said to shoot around 530, which is believable because of the cocking pressure, but its accuracy is "pretty decent."
The thing is, I have heard of odd barrel space and hopup issues for compatibility and am interested in hearing what people have to say about barrel upgrades that may have worked on this rifle before. My main concern is a new barrel/hopup unit not fitting or working correctly. Any input would be appreciated.
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