barrel machining

[jackrooz]

I am having a fac barrel turned for me ..

what I need to know is the length of the part of the barrel that the goes into the block

mk2 block

and the overall diameter of the barrel to fit the block

thank you in advance

[KevG]

who ever is doing it should know jack m8. I do them at 43mm for block which allows for the 1mm magazine blip this blip should also be 10.10 mm diameter, diameter of barrel 15.77mm,I normally do them at 15.82mm for a more snug fit.then there is the port position this needs to be 5.4mm from centre of port to barrel shoulder excluding magazine blip,same for location hole.also needs a slight chamfer at the breach bore entrance.
KevG

[jackrooz]

beautiful that's the information I needed .. perfect thanks kev...

yea I would of thought they would of known also .

don't want to leave it to it to chance or he'll just guesstimate

[Ca_Varminter]

For a tight barrel fit to the Receiver...
Go a couple of Thou oversize... Then Lap to fit that Receiver!!
This is another one of those dimensions that varies between Receivers!!!!!

Stuart