RECOIL ELIMINATORS

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5/8-24 TPI is the industry standard for AR-10-type rifles and also appropriate for custom applications.
5/8-28 TPI is NOT industry standard, but is appropriate for custom installations.
3/4-28 TPI is suitable for the full range of bore diameters, but required for bore sizes beyond .400.
The .750 outside diameter is designed for standard military contour barrels, but can be tapered down for smaller contours.
The .875 outside diameter will accommodate medium to heavy contour barrels including, but not limited to, AR-10 type rifles and bolt guns.
The 1.000 outside diameter will accommodate the heavy bull barrels common among long-range varmint rifles including, but not limited to, the M15 and AR10-type rifles.
The JPRE-324S has a final exit hole of .350 and can be enlarged to accommodate bores up to .416.
The JPRE-424S has a final exit hole of .350 and can be enlarged to accommodate bores up to .400.
The JPRE-428 has a final exit hole of .281 and will accommodate bores up to .243/6mm. The final exit hole of the JPRE-428 can be enlarged to accommodate bores up to .416.
The JPRE-428S has a final exit hole of .281 and will accommodate bores up to .243/6mm. The final exit hole of the JPRE-428S can be enlarged to accommodate bores up to .416.
The JPRE-9S has a final exit hole of .281 and will accommodate bores up to .243/6mm. The final exit hole of the JPRE-9S can be enlarged to accommodate bores up to .500.