As said, the 150 was the forerunner of the 300 and 300S and was made roughly from January 1963 to 1969 though some might have been sold after that. It was the first sledge action semi-recoilless gun, first patented in 1961.

At the same time as the 150 was produced, a recoiling version of it, the 110 was also launched. Very few were made and they are rare collector's items now.

The 150 had a lovely sporter style stock, with Tyrolean or standard cheekpiece and hand carved pistol grip instead of the stippling of later guns.

The 150 barrel was almost 3 inches shorter than the 300 but the 300S barrel was about the same length as the 150.

It was lighter at the muzzle than the later guns, more like the 300S Junior model, though a full length barrel weight was available for it as an optioinal extra. The cocking lever was longer than the 300 and 300S levers and had a car door-type latch. The 300 lever was about 2 inches shorter with a similar latch and the 300S was shorter still with a simple push down latch.

The 150 feels quite similar to shoot to the 300S. The main improvement in the later gun was the trigger, plus the single spring was replaced with double springs.

FWB 150s come up for sale quite often on egun.de but many of them are ex-club guns and well used.