1377 upgrades?
I just bought 1377 and was wondering where the best place to get upgrades is? Ill probably replace everything I can and most likely will go up in caliber.
thanks in advance
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The one that comes with the hipac is the 3k spring. Guys that can cycle it are getting pretty high velocity in the 900s.
can someone remind me, to fill to 3 kpsi do i need to buy a different spring for the internal of my HiPac, or just use the hammer spring that came with the HiPac? i was just interested to see if it would make a difference in my gun (shot count, power, etc.). thanks!
I can’t cycle it with any my BNM breeches. I broke off one bolt handle and haven’t tried in the other 2 they both have 8/32 threads. Pretty weak sauce.
thanks, I did not know it was for 3k, ill take it out since I only have factory valve.
Yes I did get a hammer spring, the 3k one. And no I don’t have it installed.
yes will be slotted.
think i found it, is the head of the screw suppose to fit inside the air tube? Also did you get a hammer spring with your hipac? I put the one in that was sent with mine and it sure is a lot harder to cock the gun.
yes theres short screw with a wide head called the valve screw 151-015.
Got the screw out now waiting on some new ones. Is something suppose to thread into the valve? If I line the transfer port up with the breech the threaded hole in the valve ends up in the middle of the grip frame.
Yes mine has set screw in the second one.
There’s 2 under the magazine and the one in front was the .05″ for me.
strange all 3 my BNM front breech screws use 1/16″ allen wrench.
Must be a different screw, my wrench says .05″ .
Wow that’s a 1/16″ Allen wrench. Not sure what grade screw it is. I drilled the head off a oe crosman breech screw before. There was enough threads and enough screw to remove with needle nose pliers. Maybe not so tight next time assman83 sorry to hear bout The breach troubles.
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No you don’t need a hipac internal spring to fill to 3k. Good luck with using the supplied hammer spring. Can’t cycle it in my BNM actions.