Hey knoxie are you making any for blasters , I bought some blowsion keepers for a sj hoping they would fit a blaster but guess what.
If you aren't making any Knoxie, I think HighFlyer has some on his blaster, someone needs to copy them. We need a couple of sets up here.
they limit how far forward the engine can shift, to prevent the engine mounts over stretching and to prevent the couplers disengaging
I'd be keen on some blaster keepers too if you make them Knoxie. My blaster is currently in bits if that makes it easier to measure up.