Inserts directly into barrel for secure sensor mounting in hard-to-reach areas
Expanding collet mechanism ensures tight, stable fit
Compatible with 9mm and 38 caliber calibers
Works with SCATt optical sensors for advanced shooting data collection
Brass construction for durability and corrosion resistance
Summarized by Shop
Barrel insert K9 aka 9mm aka .38 cal - It simply inserts into the barrel and is then tightened by an expanding collet. The collet in the picture is anodized aluminum, but the current version is brass. Works well for said calibers when it is impossible or inconvenient to mount your SCATT optical sensor on the barrel, gas cylinder or picatin