Warne MEG1932DE Magazine Extension made of 6061-T6 Aluminum with Hardcoat Anodized Flat Dark Earth Finish for Glock 19, 23 Magazines (Adds 3rds 9mm Luger, 2rds 40 S&W) $39.99
Grey Ghost Precision BARRELG19NTBN GGP Compatible w/ Glock 19 Gen3-4 9mm Luger 4.02" Black Nitride 416R Stainless Steel Match Grade Barrel $172.79
Rival Arms RA20G201A Precision Drop-In Barrel 9mm Luger 4.02" Black PVD Finish 416R Stainless Steel Material with Fluting for Glock 19 Gen3-4 $179.99
Rival Arms RA20G101A Precision Drop-In Barrel 9mm Luger 4.49" Black PVD Finish 416R Stainless Steel Material with Fluting for Glock 17 Gen3-4 $179.99
ZEV BBL17OPTBRZ Optimized Match Grade 9mm Luger, Compatible w/Glock 17 Gen1-4, 4.49" Bronze PVD 416R Stainless Steel Dimpled Barrel $255.78
Rival Arms RA-RA22G102D Essential V2 Drop-In Barrel 9mm Luger 4.49" Stainless Steel Finish & Material with Threading for Glock 17 Gen3-4 $159.99