This is a Tactical Solutions Barrel known as the Trail-Lite chambered in 22 LR, model TL4TEMBNF.
THE TRAIL-LITE HAS MANY OF THE SAME GREAT FEATURES AS Tactical Solutions' PAC-LITE BARRELS" IT OFFERS THE BUCK MARK(R) PISTOL IMPROVED BALANCE" ACCURACY AND A LIGHTER WEIGHT. AS WITH ALL TACTICAL SOLUTIONS PRODUCTS" INSTALLATION OF THE TRAIL-LITE BARREL ON YOUR EXISTING BUCK MARK FRAME IS QUICK AND EASY AND REQUIRES NO GUNSMITHING.
Features:
1/2X28 thread pitch
1:16 rifling