Our Metric to US thread barrel extension fits M13.5 X 1 LH threaded barrels, when installed it extends the barrel length by 1-1/2″ to get that little extra length you need for some suppressors and devices to clear the hand guard.
Barrel EXTENSION, Adapter 1.5″ (1-1/2″) Length by M13.5 X 1 LH to 1/2-28 TPI
Metric M13.5 X 1 LH to 1/2″-28 TPI Conversion EXTENSION 1-1/2″ Long
Designed for use on all M13.5 X 1 LH threaded barrels
Our metric to US thread barrel extension fits M13.5 X 1 LH threaded barrels, when installed it extends the barrel length by 1-1/2″ to get that little extra length you need for some suppressors and devices to clear the hand guard. To install the Threaded Barrel Adapter, all you have to do is unscrew your thread protector, brake or other device/accessory and then replace it with this adapter which will give you a 1-1/2″ extension to your barrel length and provides a 1/2-28 thread on the end of the extension. You are now ready to attach any device/accessories that fits the 1/2-28 thread pattern. Material used is the same as gun barrels 4140 Chromoly Steel alloy with Black Oxide (hot blued) Finish
Hughes Precision makes the pieces fit. This extension adapter will give you the extra length in front of your hand guard allowing you to mount sound suppressors or muzzle accessories that use 1/2-28 U.S. standard threading . The Hughes Precision Metric to US Threaded Barrel Adapter Extension is precision made to ensure concentricity and axial thread alignment key in avoiding dangerous baffle strikes.
For use with cartridges up to and including 9MM & .357 caliber.
This Threaded Barrel Adapter is compatible with our 1/2-28 thread protectors
All Hughes Precision Products LLC muzzle devices are threaded to Class 2B thread specifications and qualified with certified gauges.
We pride ourselves in keeping all of our work in house where quality and processes can be managed closely.
We are not a “cottage” business. We manufacture suppressors, barrel thread adapters and thread protectors full time and pride ourselves on having attention detail rivaled by few and the absolute best customer service in the industry. We never stop the pursuit of manufacturing to the highest quality possible.
Manufacturer: Hughes Precision Products LLC
Manufactured From High Quality 4140 Alloy Steel With Hot Blued Finish.
All of our products are manufactured IN HOUSE.
Hughes Precision Products is a licensed FFL type 7 – NFA class 2, manufacturer.
Made In Michigan U.S.A.