Herrington Arms HC92P V2 Glock Gen 4/5 Compensator No Fins Flat Dark Earth. It will fit all 1/2-28 barrels. This comp has been carefully constructed keeping in mind end-user feedback. It was created to ensure that it's the best Glock compensator in the market and it incorporates all the elements required by professional and recreational shooters alike. Some of its enhanced features include the following: the combined top port size is double the HC9XL; the side ports have been removed for shooter who perform a lot of retention shooting. Specifications for Herrington Arms HC92P V2 Glock Gen 4/5 Compensator: Manufacturer: Herrington Arms Caliber: 9mm Luger Fabric/Material: 7075 Aluminum Threads per Inch: 1/2x28 Gun Make: Glock Gun Model: Glock 45 Glock 34 Glock 17 Glock 26 Glock 19 Features of Herrington Arms HC92P V2 Glock Gen 4/5 Compensator Dual top port design to mitigate 35.5percent of vertical recoil Will fit in most open bottom holsters. We use Sierra Defense Tier 1 Concealed and Safariland. NOT COMPATIBLE WITH BAR-STO KKM OR EFK BARRELS Works with Gen 4 (NO FIN) and Gen 5 (FINNED) Glock 9mm handguns Blems are cosmetic ONLY. They will function as normal - May have nicks dings pitting machining marks chips discoloration etc. AMMO DISCLAIMER: We DO NOT recommend using plated bi-metal or frangible ammo in ANY of compensators. Doing so will void the warranty and we will not cover or replace the comp if there are any damages. Package Contents: Herrington Arms HC92P V2 Glock Gen 4/5 Compensator 5/64 Allen Key Steel Replacement 8-32 Set Screw What firearm models does the manufacturer say Herrington Arms HC92P V2 Glock Gen 4/5 Compensator is compatible with? The manufacturer suggests that Herrington Arms HC92P V2 Glock Gen 4/5 Compensator is compatible with Glock 19 Glock 26 Glock 17 Glock 34 Glock 45Herrington Arms HC92P-V2-NOFIN-FDE: HC92P V2 Glock Gen 4/5 Compensator No Fins Flat Dark Earth