Welcome to Red Dot Arms - Red Dot Arms, Inc. is a multi-faceted business dedicated to the education of individuals on the proper use and care of firearms. Red Dot Arms also sell a full line of firearms and ammunition. Whether you are a novice or marksman or somewhere in the middle, Red Dot Arms NRA certified instructors and knowledgeable sales staff can be your resource for all your firearm related questions and needs.

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Glock 31 Gen4 357 SIG 4.48" Zoom

Glock 31 Gen4 357 SIG 4.48", Black

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Glock 31 Gen4 357 SIG 4.48

The GLOCK 31 Gen4, in .357, introduces revolutionary design changes to the pistol that's been the optimum solution for those seeking high muzzle velocity and superior precision in a reliable, yet lightweight, pistol with large magazine capacity. The Modular Back Strap design lets you instantly customize its grip to adapt to an individual shooter's hand size. The surface of the frame employs the new scientifically designed, real-world-tested, Gen4 rough textured technology. Internally, the new GLOCK dual recoil spring assembly substantially increases the life of the system. A reversible enlarged magazine catch, changeable in seconds, accommodates left or right-handed operators. The G31 Gen4 .357 retains the GLOCK accessory rail for your attachments.

Glock 31 Gen4 357 SIG 4.48

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FREE SHIPPING Glock 31 Gen4 357 SIG 4.48", Black

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Product Description


The Glock pistol, sometimes referred to by the manufacturer as Glock "Safe Action" Pistol, is a series of polymer-framed, short recoil operated, locked breech semi-automatic pistols designed and produced by Glock Ges.m.b.H., located in Deutsch-Wagram, Austria. Despite initial resistance from the market to accept a "plastic gun" due to durability and reliability concerns, and fears that the pistol would be "invisible" to metal detectors in airports, Glock pistols have become the company's most profitable line of products, commanding 65% of the market share of handguns for United States law enforcement agencies as well as supplying numerous national armed forces and security agencies worldwide. Glocks are also popular weapons amongst civilians for home/self defense and concealed/open carry.

The company's founder, engineer Gaston Glock, had no experience with firearm design or manufacture at the time their first pistol, the Glock 17, was being prototyped. Glock did, however, have extensive experience in advanced synthetic polymers, knowledge of which was instrumental in the company's design of the first commercially successful line of pistols with a polymer frame. Glock introduced ferritic nitrocarburizing into the firearms industry as an anti-corrosion surface treatment for metal gun parts.

The Glock 31 is a .357 SIG variant of the full-sized Glock 22. The standard magazine capacity of the Glock 31 is 15 rounds. 

This Gun's Features:

  • Glock G31 Gen4 Pistol 357 Sig 
  • Length: 202 Mm / 7.95 In.
  • Width: 30.00 Mm / 1.18 In.
  • Length Between Sights: 165 Mm / 6.49 In.
  • Height: 138 Mm / 5.43 In.
  • Barrel Height: 32 Mm / 1.26 In.
  • Barrel Length: 114 Mm / 4.48 In.
  • Standard: 15
  • Includes three 10rd magazines
  • Unloaded: 740 G / 26.12 Oz.
  • Loaded: 940 G / 33.18 Oz.
  • Trigger Pull: 2.5 Kg / 5.5 Lbs.
  • Trigger Travel: 12.5 Mm / 0.49 In.
  • Barrel Rifling: Right Hand, Hexagonal
  • Length Of Twist: 250 Mm / 9.84 In.
In-Store Pickup Glock 31 Gen4 357 SIG 4.48

Additional Information

Additional Information

SKU PG3150201
UPC 0764503702037
Manufacturer Glock
Type Semi-Auto
Action Type No
Barrel Length No
capacity No
Finish No
Overall Length No
Safety No
Sight No
Grips No
Number of Mags No
Available for In-Store Pickup Yes
Bin Number No


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Firearms Policy

How to Buy a Firearm or Ammunition

Federal firearms laws prevent the sale of a weapon from Red Dot Arms, LLC. directly to an individual in another state (we are located in Illinois). We must ship your firearm directly to an FFL Dealer near you. The steps to follow are:

  1. Order your firearm online using our secure shopping cart. If you know the FFL dealer you are going to use at time of order placement (not a requirement) enter his name and address into the 'Ship To' field.
  2. Find an FFL dealer near you that will accept the transfer of the firearm for you. Most sporting goods stores and pawn shops will provide this service for a small fee. Also, gun clubs, shooting ranges, etc. may provide this service to you. If you don't know which FFL dealer to use in your area, put a comment in your order and we will help you locate one near you. We have access to a large list of dealers in the USA that will gladly handle a transfer for you. Most dealers charge around $25 for a transfer. You must confirm the transfer with your local FFL dealer in advance.
  3. Next, have the dealer send us a copy of his signed license if we don't already have it on file. To check whether a license is on file, contact us. Please Note: It is now legal for us to accept a faxed or e-mailed copy of your dealers license! 
  4. Make sure the dealer knows the firearm is coming from Red Dot Arms. If you used a dealer that we already have on file, call him to let him know that a gun for you is on the way.
  5. We will send you an email when the firearm ships, which will include a tracking number.

Backorder Policy

Backorder Policy

If an item is available for Backorder, you can still ADD it  to your Cart, and place the order. Typically, items on Backorder require between 6-10 Weeks before fullfillment. If you have multiple products in your Cart during checkout, items that are IN STOCK, will ship first and your Backordered products will ship seperately. 

Red Dot Arms will notify you via email when your Backordered item is fullfilled. At anytime, you can also login to your Account for shipping status. 

Why Backorder? 

Due to the nature of the current market landscape, certain items are in high demand. By placing a Backorder, it ensures that you will be at the top of the list when HOT items become available on the Red Dot Store. 

Will My Credit Card Be Charged for a Backorder?

No. Your credit card and the purchase amount will only be charged at the time of order fullfillment.