By Reed Snyder
I have always been a Sig Sauer enthusiast. When my sights strayed from the line of pistols that were my first love, they never fell on polymer pistols. I have however always been curious about the 10mm cartridge. Along my travels, I then developed an appreciation for the .357 Sig cartridge, a distant cousin to the 10mm. When Glock began phasing in the 4th generation of pistols, I found myself drawn to the G20. My desire to acquire a polymer pistol I once scoffed at was again strengthened as I discovered the range of aftermarket barrels that could be installed in the G20. The available barrels allow for the chambering of the .40 S&W as well as the venerable .357 Sig. I was sold, I had to own one. I began my search and failed to find an internet source that priced the pistols anywhere near retail. I was shocked to not only find one in stock at my Local Gun Store, but I found one that was priced to sell at the MSRP. I took my pistol to the range and I was very impressed with how the G20 tamed the 10mm cartridge. Glock and its products have earned a reputation for reliability and simplicity, and justifiably so. The G20 Gen 4 does not disappoint in this regard. The G20 is only slightly larger than the G17 in most of its dimensions and is not all that different in its handling. I am growing fonder of the polymer pistols as I spend more time with the G20 and make no mistake about it, I love my G20. However, I am reminded that the money I saved by buying a polymer pistol may have been in part due to the simplistic standard sights and the rather rough factory trigger. The aftermarket parts arena makes provision for a number of upgrades that can easily take the edge off my dissatisfaction with those two items. After spending time on the pistol, I would heartily recommend the G20 to anyone interested in the 10mm cartridge or a Glock enthusiast looking to complete their collection.
Firearms Insider Reviews - 8 Key Points
Claim to Fame: Reliability and Simplicity
Target Market: Hunters and Enthusiasts
F&B's:
- Key Features
- Polymer frame.
- Aggressive stippling on the grip
- Glock’s “Safe Action”® System.
- Dual Recoil Spring Assembly
- Modular Backstrap System
- Enlarged Reversible Magazine Catch.
- Loaded chamber indicator
- Key Benefits
- Light and durable
- Design and construction reduces felt recoil
- Easy to take down and service
Does it come in black?: Aftermarket parts are widely available as are aftermarket barrels. Examples of where to find them are listed below.
What others are saying?:
Price point:
- MSRP = Glock Site - MSRP is not readily available
- Retail = The G20 Gen 4 is a little hard to come by. Retailers are selling the Gen 3’s as fast as they can to clear inventory, so availability of the Gen 4’s is spotty.
I need it now!: Gunbroker.com is the place with the most access to available G20 Gen 4’s.
Our Rating:
+Recoil from the 10mm cartridge is tamed +Simple controls and manual of arms +Reliability, reliability, reliability. +Reasonably priced
-Standard Glock sights -Unsatisfactory factory trigger
Score - 8.0 Great
Reed Snyder
Host - AR-15 Podcast.com


- You have to disengage the safety, adding time until you can fire it.


















Compact size
Uses 2032 Lithium batteries (included)



LED rating of 300 lumens
Strobe setting (toggle or hold)
2.5 hour run time
Compatible with various mount types using included rail keys.






