Glock 20 Summary

The 20 by Glock is a recoil operated semi-automatic Pistol produced during 1990 which sells new for $637.00 and has an estimated used valuation of $440.00. It's caliber is listed at 10mm Auto with a muzzle velocity (MV) From 1030 to 1400 ft/sec, muzzle energy (ME) From 425 to 587 ft-lb, and muzzle weight (WT) From 135 to 200 grains. The Glock 20 has fixed, white dot front, white square U rear sights, a integrated polymer grip, polymer frame, and a Glock single-action (SA) trigger. This handgun has a 15-round magazine with a maximum capacity of 16 rounds. The 20 has a recoil factor of 9.9 ft-lb and IDPA Power Factor of 199757.

STI International USPSA Double Stack Summary

The USPSA Double Stack by STI International is a recoil operated semi-automatic Pistol produced during 2009 - 2012 which sells new for $2,818.00 and has an estimated used valuation of $2,000.00. It's caliber is listed at 9mm Luger with a muzzle velocity (MV) From 985 to 1500 ft/sec, muzzle energy (ME) From 294 to 450 ft-lb, and muzzle weight (WT) From 90 to 147 grains. The STI International USPSA Double Stack has fiber-optic front, adjustable rear sights, a modular polymer grip, steel frame, and a single-action (SA) trigger. This handgun has a 17-round magazine with a maximum capacity of 18 rounds. The USPSA Double Stack has a recoil factor of 3.72 ft-lb and IDPA Power Factor of 145516.

Comparison Chart

Title:Glock 20STI International USPSA Double Stack
Caliber:10mm Auto9mm Luger
Common Name:N/A9mm Parabellum
Type:PistolPistol
Production Years:19902009 - 2012
MV:From 1030 to 1400 ft/secFrom 985 to 1500 ft/sec
ME:From 425 to 587 ft-lbFrom 294 to 450 ft-lb
WT:From 135 to 200 grainsFrom 90 to 147 grains
Brand Name:GlockSTI International
Model Number:20USPSA Double Stack
Retail Price:$637.00$2,818.00
Used Price:$440.00$2,000.00
Action:recoil operated semi-automaticrecoil operated semi-automatic
Trigger:Glock single-action (SA)single-action (SA)
Safety Type:'Safe Action' trigger safetygrip safety, manual thumb safety
Magazine Capacity:15-round17-round
Frame Material:polymersteel
Grip Type:integrated polymermodular polymer
Sights:fixed, white dot front, white square U rearfiber-optic front, adjustable rear
Width:1.27-inNo Data
Length:8.22-in8.5-in
Height:5.47-in5.5-in
Barrel:4.6-in5-in
Weight:30.7-oz38.5-oz
IDPA Power Factor:199757145516
Recoil Factor:9.9 ft-lb3.72 ft-lb
Total Capacity:16 rounds18 rounds