got rid of the B1 and replaced it with a B3-1 in .177. Got to go through it.
Great project guns - almost anything will improve them. I suppose it's possible to carry B3 mods to ridiculous lengths, but thankfully I'm immune that that malady.
Slavia... that b3 is the coolest in the planet. I love the stens and the b3, so that does it for me. what is the cocking handle for? is it functional?