The STUD Single Shot Loader fits the FX Impact in .177, .22, .25, or .30 caliber versions, and will feed any style of pellets or slugs up to 13mm (.512") in length.

It features magnetic field alignment technology, which centers the round chamber perfectly with the barrel — there are no "mechanical" stops controlling the position of the lever. The rotating arm uses two roller bearings for excellent radial positioning and smooth movement, and the carbon-filled engineering polymer construction offers excellent stiffness and thermal stability.

Key Features

Magnetic Self-Centering Alignment (No Mechanical Stops)
Unlike traditional loaders that rely on fixed stops, the STUD Single Shot Loader uses opposing magnetic fields to automatically center the chamber with the barrel. Dual magnet sets in the base and rotating arm create a self-aligning system that locks the chamber precisely on the barrel centerline, maintains alignment even with debris (lead shavings, dust, etc.), and eliminates tolerance stack-up and wear issues common in mechanical stop designs — for consistent, repeatable alignment with zero adjustment needed.

Dual Oversized Precision Bearings
The rotating arm pivots on two 16mm sealed 2RS bearings, delivering ultra-smooth rotation, minimal resistance so the magnetic system can self-center perfectly, and increased rigidity and resistance to deflection under load.

High-Stiffness Carbon-Filled Construction
Manufactured from 25% carbon-filled engineering polymer, the loader offers exceptional stiffness and dimensional stability, resistance to thermal expansion and warping, and long-term durability under repeated use. Both the base and arm feature a 50% cubic infill structure for a dense, reinforced internal geometry that resists twisting and maintains alignment under magnetic load.