Quote:
Originally Posted by RacingManiac
The only thing I have against those is you are going to have trouble finding matching rate recoil spring.....
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so you cant really use the stock sys7 recoil spring for it? what happens if you do use the stock one? just been watching those videos from ra-tech on youtube...it seems like the recoil is alot 'heavier'? but i think they were using the stock spring..