Barrel is from a pre-war Webley .177 pistol, breech is screw fitted to barrel and is machined from 4140 alloy steel, with a n.a.s spec steel breech plug.
Made about 28 years ago, when It accounted for several Britain's lead soldiers in a spectacular fashion....
Section 2 or Section 1?
Jim
UBC's Police Pistol Manager
"Nasty, noisy things, revolvers, Count. Better stick to air-guns." Sherlock Holmes, The Adventure of the Mazarin Stone