Fletcher Rifle Works ST-174 Features The Fletcher Rifle Works ST-174 is machined from steel in a CAT QD configuration allowing shooters to attach and detach a HUB-compatible suppressor quickly and repeatably without losing zero. Its 1.375x24 thread pattern matches the HUB mounting standard used across a wide range of suppressor brands giving shooters flexibility in which cans they run on this mount. Because this is the left-hand variant the threading orientation is reversed from standard right-hand mounts ensuring correct installation and removal direction on left-hand threaded muzzle devices and barrels. This attention to threading direction prevents cross-threading or accidental loosening during use on left-hand oriented host platforms. At just 0.17 lbs the ST-174 adds negligible weight to the muzzle end of the rifle keeping the overall suppressed setup balanced and maneuverable. Part of Fletcher s broader ST-series muzzle accessory lineup this mount reflects a focus on precision engineering for suppressor users with specialized threading needs. Shooters running left-hand threaded barrels have historically had fewer suppressor mounting options making this dedicated LH mount a valuable solution. For left-handed shooters seeking a dependable quick-detach suppressor mount built specifically for their platform the Fletcher Rifle Works ST-174 is available for sale at GrabAGun. Fletcher Rifle Works ST-174 Specifications Manufacturer: Fletcher Rifle Works Model: ST-174 Material: Steel Handedness: Left Hand Thread Pattern: 1.375x24 Weight: 0.17 lbs Available At: GrabAGun