Will These Parts Fit?

[1377x]

That will work i was going to order two of them but i could only afford one. So i guess that worked out good. 
pc

i was going to say if you ordered two i would take the other one off your hands.luckily you only got one

if you do the pa mod to your pc77 with the stock end cap
keep in mind if you make the adjuster screw bigger than the hammer spring you can change hammer springs with out taking the gun apart

[PC77]

Thanks for the tip that is a good idea.
pc77

[JEBert]

PC77,
Sorry if I steered you wrong.  I saw the question about the parts fitting on your 2400 and missed the first part about the PC77.  If you drill and tap it, use a 3/8-24 tap and find a 3/8" fine threaded screw for the adjuster.  That is large enough to change the spring without taking the adjuster assy off of the gun.  That is the size Charlie Mellon uses too.
Cheers,

[PC77]

No problem, everything worked out great. Thanks for the bolt size i only have a few taps but i just happen to have a 3/8-24 tap.
pc