Butt Slide Types

[Brit plumber]

Just a few more bits for you

The early Enfield Mk1 lower (To somewhere in the late E serial range) was as Peter described, intricately machined around the trigger assy axis pin heads and ends (Curvy), and It was also scalloped at the rear.

The Enfield Mk1 (Later) lower was simpler in the area around the trigger assy axis pin heads and ends (Squared). It wasn’t scalloped at the rear. (Began around the early F serial range)

The Daimler/Monotype Mk2 was shorter (As mentioned by Peter), had the simpler squared trigger assy area but did have the scalloped portion at the rear*.

The Inglis Mk2 was much like the later Enfield Mk1 lower but was shorter like the Daimler/ monotype lower.

The Lithgow lower was Square in the trigger area like the later Mk1 type but was scalloped at the rear like the earlier Mk1 type.

The early Inglis mk1 was the same as the early Enfield Mk1 type with the addition of (I think) a steel batch number and acceptance stamps at the front end (Upto M5000 ISH).

The later Inglis Mk1(M) was the same as the later Enfield type with the addition of the steel batch number and acceptance stamps at the front end.

*I’m unsure if later mk2 monotype guns had a Inglis mk2 type lower or stayed with the scalloped mk2 type.