Short Lane .38 adapter for 12-gauge

The Predator Intelligence Blog just ran a story on an interesting piece of kit for those who are limited in their range access for shotguns. Certainly a possible alternative for those who can't even use birdshot for training.
"Shooting your shotgun can be limited at indoor ranges limiting you to slugs if allowed at all. Short Lane has developed various chamber adapters to convert your shotgun for shooting .22LR, 9mm, 45 ACP or Colt, 44mag, and 38 Special to their expanding line. Different adapters are available for various barrel types including 10, 12, 16, 20, and 410 Gauge. The smooth bore options are especially affordable which is currently the only option for .38 Special, while higher end options with rifling are available for increased accuracy..."

Short Lane 12 Guage to 38 Shotgun Adapter