The Threaded Barrel G19 Gen5, G19X & G45 RH fits Glock 9mm models G19 Gen5, G19X, and G45. Featuring ½ x 28 RH SAE threading and a metal thread protector, this match-grade barrel from our Glock threaded barrels collection delivers precision, durability, and suppressor-ready performance.

The Threaded Barrel G19 Gen4 RH fits Glock G19 Gen3 and Gen4 pistols, offering ½ x 28 RH SAE threading and a metal thread protector. Designed for precision, suppressor compatibility, and lasting durability — an essential upgrade that complements any setup built with premium magazine parts.

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Fits: G21 Gen3 and Gen4 M16 X 1 LH .45 Auto Metric Threaded Barrel w/Metal Thread protector (PKG) While supplies last. *Not compatible with G21 Gen5 Note: Threaded barrels are defined as "assault weapons" pursuant to the laws of California, Connecticut, Delaware, District of Columbia, Illinois, New York, and Washington and may not be sold to commercial customers in these states.