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J-Rob

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Posts posted by J-Rob

  1. So after another trip to the range the JP SCS was still not allowing bolt lock back and I also felt more recoil. I talked to one of JP's armorers and they are sending me a lighter spring to try out. They said the SCS system was really designed for rifles with adjustable gas blocks that could have the gas and SCS systems tuned together. So I hope swapping the spring will solve the problem. So, if you're having the same problem I suggest getting a lighter spring from JP.

  2. I finally received my JP SCS from Brownells backorder and installed it in my rifle. I'm running a LaRue 16" 5.56mm PredatAR with Magpul PRS stock with the JP SCS. I have ran close to 500 rds so far with this setup and about 40 of those rounds were loaded 1 at a time in various magazines and not once did the bolt lock back. I did this after firing 2 full 30rd magazines and noticed the bolt failed to lock on both magazines. I'm thinking the spring might be a little too strong and isn't letting the bolt back to the rear far enough for lock back. Is anyone else having this problem?

  3. Your PRS stock has more movement in it than a colapsable? That is unusual. Something's loose.

    I haven't received it yet, I was just talking about a rifle buffer and spring in an a2 receiver extension.

    I went with a PRS and the new JP Silent Captured buffer. Yeah it's way more than a rifle buffer and spring but I think it's totally worth it.

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