I couldn't help myself..
META TACTICAL Apex Bullpup Conversion Kit for Glock 17 19 20
APEX Carbine Conversion Kit for Glock pistols - GUNTRAP CONCEALMENT
The FireArm Guy Reviews APEX Bullpup Kit for Glock 19
Apex Carbine Conversion Kit for Glock 17 Gen 3-4
CAA MCK Advanced Micro Conversion Kit for Glock 17/19/19X/22/23/25/31/32/45
Accessibility Tools
Command Arms Micro Handgun Conversion Kit Glock 17/19/19X/22/23/31/32/45, Tan Finish - Impact Guns
Roni 16 Glock 17 Carbine Conversion Kit [4K]
Command Arms Accessories RONI Civilian - Pistol Carbine Conversion Fits Glock 17 9mm Black RONI-C-G2
Advantage Arms 22LR Conversion Kit Glock 19 Gen 5 - Free Shipping
Apex Carbine Conversion Kit for Glock 17 Gen 3-4
Apex Carbine Conversion Kit for Glock 34 (Gen 3-4)
Apex Action Enhancement Trigger & Trigger Bar Kit for Glock