M1911 and M1911A1 barrel comparison

[maco]

Here is what Karl was talking about in a previous thread about the difference between 1911/1911A1 barrels.

1. The barrel on the far left is from Colt M1911 s/n 260.

2. The second barrel is Springfield Armory from M1911A1 Union Switch & Signal s/n 1041432.

3. The third barrel is a spare M1911A1 High Standard barrel.

4. the barrel on the far right is a M1911A1 Flannery from R. Rand s/n 1577956 British proof.

The barrel hoods are chamfered on all the A1 barrels but more importantly if you notice between the lugs of the M1911 barrel the cut is noticeably more shallow.

[maco]

In this picture you can see what I have been calling the lip of the barrel. These pictures are in the same order from the previous picture with the 1911 barrel on the left.

[maco]

Here is a picture of barrels from s/n 260 on the right and on the left the transition

[maco]

For this reason 1911 barrels cannot be faked. You can take material out but you can't add material.

[dsk]

It's called a TIG welder.