All handguns are required to ship via 2nd day. Please be sure to choose the correct shipping. If you select anything other than 2nd day your order will be cancelled.

Note: You must live in one of these States to purchase Glock Blue Label handguns: PA, NJ, MD. DE, CT, ME, NH, MA, VT, RI, NY

G21 Gen4 .45ACP with Glock Night Sights

Remarkable for its accuracy and light recoil, the GLOCK 21 Gen4 delivers the power of the 45 Auto round with high magazine capacity. The Modular Back Strap system makes it possible to instantly customize its grip to accommodate any hand size. The reversible magazine catch makes it ideal for left and right-handed shooters The Gen4 system is the perfect complement to the 45 Auto caliber cartridge. 

Specs:

• Caliber: .45 Auto
• System: Safe Action®
• Magazines: (3) 13rd magazines
• Barrel Length: 117 mm | 4.61 inch
• Weight without magazine: 745 g | 26.28 oz
• Weight: with empty magazine: 830 g | 29.28 oz
• Weight with loaded magazine: 1100 g | 38.80 oz
• Trigger Pull: 5.5 lb
• US manufactured for Domestic/Canada

Dimensions:

• Length (Overall)*:205 mm | 8.07 inch
• Slide Length: 193 mm | 7.60 inch
• Width (Overall): 34 mm | 1.34 inch
• Slide Width: 28,5 mm | 1.12 inch
• Height incl. Mag.: 140 mm | 5.51 inch
• Line of Sight (Polymer): 172 mm | 6.77 inch
• Line of Sight (Steel): 171 mm | 6.73 inch
• Line of Sight (GNS): 170 mm | 6.69 inch
• Trigger Distance*: 72.5 mm | 2.85 inch*

*GLOCK Gen4 pistols have a few key innovations that make the gun suitable for smaller profile hands and varying experience levels: interchangeable backstraps, a reversible magazine catch, a dual recoil spring assembly, and a rough textured frame. 
  
Modular Back Strap System  
GLOCK Gen4 pistols come with a modular back strap system, allowing you to choose the back strap that best fits your grip without changing your grip angle. Two back straps are included with your Gen4 pistol: medium, which adds 8/100 of an inch from the back of the grip to the trigger, and large, which adds 16/100 of an inch. The smallest back strap is incorporated into the frame of the pistol. 
  
Enlarged Reversible Magazine Catch  
The magazine release catch of the Gen4 is reversible and enlarged, allowing you to easily switch the catch to the left or right side of the pistol with no additional parts. 
  
Dual Recoil Spring Assembly  
The Gen4 pistols have been upgraded to a dual recoil spring assembly. The dual recoil spring assembly noticeably reduces the recoil you feel, while simultaneously increasing its lifespan. 
  
Rough Textured Frame 
The Gen4 has a new Rough Textured Frame (RTF) surface designed to enhance grip traction, present on the frame as well as the interchangeable back straps. 

Please check your local laws for restrictions before ordering firearms. 
IMPORTANT:

• You must include your FFL's name and phone number in the comment section before you click "Place My Order".
• Handguns must be shipped via 2nd Day Air. You do not need to select 2nd Day Air during checkout, You can choose any shipping option for long guns.
• You will receive an order confirmation e-mail with your order number. If you do not receive an email order status update within two business days after placing your order, please give us a call at 1-800.852.6088.
• Contact your FFL to arrange pickup of your firearm.
• Ammunition and firearms must be shipped separately
• Once the transfer of the firearm is complete, the manufacturer's warranty is in effect
• Firearms are non-returnable

Firearm Restrictions:

• California: Handguns must be on Approved List. Assault weapons must be CA Approved.
• Connecticut: No Semi-Auto Rifles
• Maryland: Firearms sales only to Class 01 FFL Dealer. Varying restrictions on Assault Weapons
• Massachusetts: No Handguns, Varying restrictions on Assault Weapons
• New Jersey: Firearms sales only to Class 01 FFL Dealer. Varying restrictions on Assault Weapons
• New York: No Assault Weapons, No Handguns (NYC)
• Washington D.C.: No Firearms

High-Capacity Magazine Restrictions 
High-capacity magazines are not legal in all areas of the U.S. Please be aware of your local laws before ordering. It is the customer's responsibility to comply with all laws regarding these items. 
State Restrictions on Large-Capacity Magazines

 Warning: This Product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. 
For more information go to www.p65Warnings.ca.gov