JP Recoil Eliminator for AR-15-type rifles
1/2-28 TPI is the industry standard for AR-15-type rifles and also appropriate for custom applications.
.750 outside diameter is designed for standard military contour barrels, but can be tapered down for smaller contours.
The JPRE-2S has a final exit hole of .281 and will accommodate bores up to .243/6mm. The final exit hole of the JPRE-2S can be enlarged to accommodate bores up to .358.