Glock 21 Gen4 .45 ACP Blue/Black Pistol
Capacity: 13+1 · Barrel Length: 4.6 inches
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Specifications
Grip Polymer
Action Semi-Automatic
Finish Blue/Black
Sights Standard Sights
Weight 29.3 ounces
Capacity 13+1
Grip Safety No
Optic Ready No
Barrel Length 4.6 inches
Manual Safety No
Overall Length 8.03 inches
Trigger Safety Yes
Caliber / Gauge .45 ACP
Threaded Barrel No
Magazines Included 3
Ambidextrous Safety No
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to WWW.P65WARNINGS.CA.GOV
Description
Product Overview
The Glock 21 Gen4 is a full-size semi-automatic pistol chambered in .45 ACP, combining the cartridge’s substantial bullet diameter with a design intended to provide manageable recoil and consistent accuracy. Its polymer frame uses Glock’s Gen4 Rough Texture technology and Modular Backstrap System, allowing the grip profile to be adjusted for different hand sizes. The pistol also features a reversible magazine catch, a dual recoil spring assembly, and an integrated trigger safety. This configuration includes three magazines, standard 3-dot sights, and a 13+1 capacity.
Key Features
- .45 ACP chambering delivers the proven performance of a full-size service cartridge
- 13+1 capacity provides substantial onboard ammunition
- Gen4 Modular Backstrap System helps tailor the grip to the shooter’s hand size
- Rough Texture frame surface supports a secure grip during handling and firing
- Reversible magazine catch accommodates left- or right-handed operation
- Dual recoil spring assembly is designed to support extended service life and reliable cycling
The Glock 21 Gen4 offers a configurable full-size platform with practical capacity and familiar Glock controls for range, duty, and defensive applications.
4.9 | 55 Reviews
Free and Fast Shipping to the Lower 48 States.
- SKU:
- PG2150203
- UPC:
- 764503102035
- BUDS ID:
- 76622
Compatible Ammo
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Customer Reviews
4.9 out of 5
55 total reviews
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Latest Reviews
Vincent T.
3 years ago
Verified Purchaser
Great gun very...
Great gun very accurate low recoil for 45.
Eleazar A.
4 years ago
Verified Purchaser
Bought this as my...
Bought this as my first (build a glock) I replaced the barrel with a blacklist industries.. actually made a few different upgrades but I won't get into all that.. I always run my guns as is when I first purchase them and honestly it was great without the upgrade I just chose to personalize it. Anywho I love the gen 4 grip texture and the rest is dependability
William C.
4 years ago
Verified Purchaser
For a used Glock, this...
For a used Glock, this was an awesome purchase. Great price. I would recommend Buds used guns to those looking for a reliable gun at fantastic pricing.
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Retail Availability
Bud's Gun Shop - Lexington, KY
1105 Industry Road, Lexington, KY 40505
Bud's Gun Shop - Sevierville, TN
2270 Two Rivers Blvd, Sevierville, TN 37876
Uncle Lee's - Greenville, KY
820 Main St, Greenville, KY 42345
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| Action | Semi-Automatic | Semi-Automatic | Single Action | Semi-Automatic | Semi-Automatic |
| Barrel Length (in.) | 4.6 | 4.25 | 5.0 | 4.5 | 5.0 |
| Caliber / Gauge | .45 ACP | .45 ACP | .45 ACP | .45 ACP | .45 ACP |
| Capacity | 13 | 13 | 7 | 13 | 8 |
| Finish | Blue/Black | Blue/Black | Blue/Black | Blue/Black | Blue/Black |
| Overall Length (in.) | 8.03 | 7.72 | 8.75 | 8.0 | 8.75 |
| Sights | Standard Sights | Standard Sights | Standard Sights | Standard Sights | Standard Sights |
| Weight (lbs) | 1.83 | 1.76 | 2.38 | 1.85 | 2.44 |
| Manual Safety | No | Yes | Yes | No | Yes |
| Grip Safety | No | No | Yes | No | Yes |
| Trigger Safety | Yes | No | N/A | Yes | No |
| Ambidextrous Safety | No | No | N/A | No | Yes |
| Actions | Current Item |
