New LG

[popgun pete]

In case you are wondering, the circlip on the inner barrel allows you to line the inner barrel up by having something to hold onto when you do up the rear inlet valve body as there are no indexing lug cut-outs on the rear end of the gun's inner barrel. If you don't line it up the trigger transmission pin will not push on the bottom of the sear lever. Most plastic handle guns have lugs moulded inside the handle interior to match the cut-outs in the rear end of the inner barrel tube, but you cannot easily do that with a machined part. The sear lever pivot pin which protrudes either side out of the inner barrel does have some sockets to slide into inside the rear handle, but I don't think that they are an exact fit.

Note that the Mares tube spanner undoes the LG Sub inlet valve body, not surprising given that the guns use the Mares hand pump.

 

[popgun pete]

Here is a photo of the metal tail Delrin piston lined up on the sear lever's tooth. The piston only has a single "O" ring seal and has a knurled rear body section which may be to hold oil or to make it a slightly tighter fit. Pistons need to be long enough to not rock in the inner barrel, a problem with the very early Stens. If the muzzle tightly controls the spear then the piston is less likely to rock.

This is the Delrin grip handle which is held in place by two stainless steel pins. The sloped outer ends on the front pin which follow the angled contours of the handle made it a pain to knock out. I used a hollow nose needle punch to bite into the pin as if the punch skidded off it might damage the handle.

 

[popgun pete]

Here is the rear inlet valve body that holds the gun together along with the muzzle at the front end by serving as a clamp utilizing the inner barrel as a structural element. Unlike plastic rear body guns which seal by pulling up onto a large flat plastic surface inside the well of the rear handle body, the LG Sub guns being an alloy rear body need a rubber seal here. The inlet valve is held together by a tiny circlip.

 

[popgun pete]

When I first saw the reference to the machined alloy rear body I had thought that it may have functioned as the rear nut rather than the inlet valve body, which would have been very different. However once it was apparent that the inner barrel extended from one end to the other that meant the gun was of the usual construction and the sear lever pivoted on the inner barrel. The mention of a reverse trigger in one of the early articles on the gun was wrong, any increased working course of the piston is down to the short piston and the sear lever pivot pin being located further back in the gun. What allows that is a trigger that is longer in the fore-aft sense and short vertically as usually triggers swing below their pivot pin, but in the LG it swings from in front on a forward section of the travel arc.