Crosman 1377 1322 2289 Barrel Spacer This listing is for plastic barrel spacers for both the old 1377 and 1322 models and also the new ones, as well. May fit the 2289, as well. The barrel spacers go between the top of the main tube and the bottom of the barrel. As such, they close the gap as see in the photo above. The also help to reduce flex during the pneumatic discharge of your shot. As such, they arguably increase accuracy. They can be cut to length with a razor blade, hacksaw or similar. I have longer ones available, too, for longer Crosman models.