Stage 1 - £30.00
FWB, HW80/35, Orig 45
Deburr, spring, lube, size piston head, phosphor bronze bearing on piston.
No bearing was added to the 85 because of the piston cut out
Stage 2 - £45.00
All of above plus fitting of solid guides
Stage 3 - £60.00
Available on HW77 only
All of above plus piston runs on rear ptfe bearing supported by a phosphor bronze skirt and a forward ptfe bearing, compression chamber shortened to match. Choice of stroke length. Roller bearings were used to remove torque. On our ‘race guns’ I used to set them up with a Original 75 piston seal. These were very efficient but only lasted 500 - 1000 shots. When you look at this set up it is pretty much identical to that used in the tx, but I was doing this in mid ‘85.
Stage 2 was the most popular.
Hope this helps Mach,
ATVB
Richard