Track Offset... Does it matter?

[Jpopsbronco]

Hi everyone - I am in the process of building my first custom gun. I haven't purchased anything yet because I ran into a mismatch that I can use help on:

Its going to be an inverted roller, and I want to use the following:
- Ermes Avatar handle 26mm barrel with 2.8mm offset
- Carbon barrel 26mm ID with either 2.3 or 2.8mm offset
- MVD Roller muzzle 26mm barrel with 2.3mm track offset

You can see that the handle and roller muzzle are "incompatible" due to the differences in track offsets. Does this really matter? I don't have any of these parts in my hand, and I only have experience with open muzzle style guns, which the track is the tallest part, and the bands are fully relaxed as the shaft passes over the muzzle portion, so any stepdown would not be noticed.

I did some math and if I use all these parts, there will be a 0.5mm / .02" step down from the track to the muzzle track, which sounds like nothing. What am I missing here, does it matter? and if not why do they even differentiate between 2.3mm vs 2.8mm offset??

Thanks for your help!

 

[rollerGR]

Lower muzzle offset doesn't matter and if anything it's a plus because it reduces the risk of the muzzle touching the shaft's tail and altering its trajectory during the shot (which is common with most guns and especially rollers).

Different offset becomes a problem only when the muzzle offset is higher (worst) or the barrel's offset is higher than the handle's (bad).

 

[Jpopsbronco]

Excellent, thank you very much! It makes sense, and I appreciate the sanity check.

 

[doyenofcastle]

can you post pictures for assembly