Catch22 S&W 15-22 Magazine Adapter (Stick on)

AR Catch22 magazine adapters can stick right onto your 15-22 magazines for a quick and easy way to shim the magazine and take up the slack in the mag well.  With these adapters, the S&W 15-22 magazine will work great with the Catch22 to provide true last-round-hold-open functionality.  If you are using a Kriss Defiance DMK22 which already comes with a bolt catch, you can use these adapters to use the 15-22 magazines instead of the Kriss magazines. This can be helpful as the 15-22 magazines are more consistent for bolt-hold-open and they come in higher capacity than the Kriss magazines.  One adapter is needed per magazine.    For international orders, please visit our partner's page at