A CNC-machined single-port 9mm compensator threaded 1/2x28 - the same width as a standard 9mm Glock slide (G17, G19, and G26), so it stays flush from the ejection port to the muzzle without protruding beyond the slide profile. A single upward-vented port bleeds gas straight up to reduce muzzle rise on rapid follow-up shots, and two side-mounted set screws lock the comp to the barrel shoulder for repeatable indexing. Specs & features: Fits 1/2x28 TPI threaded 9mm barrels (Glock 17, 19, 26 platform width) CNC-machined 6061 aluminum Available in DLC or TiN finish 1" wide - matches standard 9mm Glock slide profile Adds ~1 3/16" to overall slide length Two set-screw retention for repeatable index and lock-up Compatibility notes: This is a full-size / compact 9mm compensator - do NOT pair with a Glock 43 / 43X / 48 threaded barrel. Subcompact G43-family slides are narrower and this comp will sit proud of the slide. Match your Glock 17 / 19 / 26 threaded barrel to this comp for a clean single-plane profile. Verify the muzzle thread pitch is 1/2x28 before install, and torque the set screws with blue thread-locker for a durable install. STATE RESTRICTION NOTICE: Threaded muzzle devices and threaded barrels are restricted or prohibited in CA, CT, DC, HI, IL, MA, MD, NJ, NY, RI, VA, WA, and select municipalities. It is the buyer's responsibility to verify local, state, and federal laws before purchase. Orders that cannot ship to a restricted address will be canceled and refunded. DISCLAIMER: "GLOCK" is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither 3CR Tactical nor this site are affiliated in any manner with, or otherwise endorsed by, GLOCK, Inc. or GLOCK Ges.m.b.H. The use of "GLOCK" on this page is merely to advertise the sale of GLOCK pistols, parts, or components. For additional genuine GLOCK, Inc. and GLOCK Ges.m.b.H products and parts visit www.glock.com.