The full-size .45 ACP handgun remains a go-to choice for shooters who prioritize controllable power, reliable function, and proven ergonomics. For duty, home defense, or range work, a USA-made example that combines manufacturing provenance with Gen4 ergonomics delivers a balanced package that performs under real-world conditions.
GLOCK G21 GEN 4 — this USA-manufactured G21 Gen4 bears clear “MADE IN USA GLOCK, INC., SMYRNA, GA.” frame markings, a slide rollmark “GLOCK 21 Gen4 USA 45 Auto,” and a “US” marking on the barrel hood. 
What sets this GLOCK G21 GEN 4 apart
This very good condition, USA-made G21 Gen4 ships with one Glock OEM 13-round .45 Auto magazine and features Glock’s Safe Action striker-fired system with a 4.61-inch steel barrel. The matte black slide has rear serrations and fixed sights (white-dot front, white-outline U-notch rear). The barrel uses polygonal rifling with a 1:15.75 RH twist, and the bore shows excellent, clean rifling—important for accuracy and consistent groups.
HWK XL 5.56 Giveaway
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A third-party retailer is currently hosting a giveaway for an HWK XL 5.56 pistol package (≈ $1,800 retail value).
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Shop this product to view images and confirm current inventory; the listed price is $578.99.
Gen4 ergonomics and handling
Gen4-specific features include the RTF grip texture with finger grooves for a secure purchase during rapid fire, and an enlarged, reversible magazine release that accommodates left- or right-handed shooters and faster reloads. The polymer frame includes two cross pins above the trigger and the Glock Universal accessory rail with one cross slot for lights or optics adapters.
Caliber benefits and use cases
.45 ACP remains a practical choice for users seeking subsonic performance with strong terminal energy at moderate ranges. The G21 Gen4’s 13+1 capacity balances stopping power and magazine capacity in a full-size platform suitable for duty carry or defensive use, while the clean polygonal bore supports consistent accuracy at the range.
For buyers who want a USA-made full-size .45 with documented provenance, solid bore condition, and Gen4 ergonomics, this GLOCK G21 GEN 4 is a practical option. View product details and pricing on the shop page to confirm specs and proceed to purchase.
Check availability today and evaluate the G21 Gen4 for your defensive or range needs. Check current availability
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People Also Ask
What makes this product stand out from competitors?
This product offers superior quality and innovative features that set it apart in the market. Its design focuses on both performance and reliability, making it a top choice for professionals and enthusiasts alike.
Is this product suitable for beginners?
Yes, this product is designed with user-friendly features that make it accessible to beginners while still offering advanced capabilities for experienced users.
What warranty or support is available?
The product comes with comprehensive warranty coverage and excellent customer support to ensure your satisfaction and peace of mind.
How does this compare to similar products in its price range?
This product offers exceptional value for its price point, providing features and quality that typically cost significantly more in comparable alternatives.
What maintenance is required?
Minimal maintenance is required thanks to the product’s durable construction and quality materials. Regular cleaning and occasional inspections will keep it performing optimally.
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