Kel-Tec issued a voluntary recall on its SUB-2000 rifle due to an issued with the heat treatments of certain steel tubes. Caleb Morse from Barney's Police Supplies, headquartered in Lafayette, updated Rob and Bernie during his weekly Firearms Friday segment on KPEL.

From Kel-Tec:

IMPORTANT SUB-2000 SAFETY RECALL NOTICE
We have recently identified an issue with the heat treatment of certain steel tubes received from a third-party supplier from which the barrels for a limited number of Kel-Tec SUB-2000 rifles were manufactured.  This could potentially cause the barrel to rupture when a cartridge is fired and could result in serious personal injury.  The safety of our customers is our primary concern, so Kel-Tec has voluntarily initiated this recall because of the possibility of a barrel rupturing. This recall only affects a portion of SUB-2000s that were manufactured in 2017. All costs associated with the recall of your firearm shall be covered by Kel-Tec.