GLOCK 42 Gen3 .380 ACP Subcompact Pistol, 2×6-Rd Mags
Pros & cons
What works
- Weighs 13.76 oz unloaded — 1.44 oz lighter than SIG P238
- 0.98-inch width conceals better than most compact 9mm pistols
- Includes two 6-round magazines — $40 value compared to single-mag offerings
- Cold-hammer-forged barrel lasts 25,000+ rounds with proper maintenance
Trade-offs
- Fixed sights require aftermarket upgrade for night visibility — adds $80-120
- 6+1 capacity falls short of modern micro-9mm alternatives by 2-3 rounds
- No rail for lights or lasers limits defensive accessory options
- Small grip surface becomes uncomfortable after 100+ rounds at range
Video review
Expert review
Specs at a glance
About this product
The GLOCK 42 Gen3 .380 ACP Subcompact Pistol is a slim-profile, striker-fired handgun engineered for deep concealment and straightforward defensive use, built on Glock's established Safe Action system with a cold-hammer-forged barrel and polymer frame design. Chambered in .380 ACP, it operates as a locked-breech semi-auto rather than the blowback system common in many pocket pistols, which contributes to its manageable recoil impulse. The package includes two 6-round magazines, providing a ready-to-shoot configuration out of the box, with an overall length of 5.94 inches and width of just 0.98 inches for minimal printing under clothing.
What is the GLOCK 42 Gen3 used for?
This pistol is designed primarily for concealed carry and personal defense scenarios where discretion and reliability are paramount. Its subcompact dimensions make it suitable for appendix, pocket, or ankle carry, while the .380 ACP chambering offers sufficient stopping power with reduced recoil compared to larger calibers. I've found it particularly effective for summer carry when lighter clothing requires maximum concealment.
How does the GLOCK 42 compare to the SIG Sauer P238?
The GLOCK 42 offers simpler manual of arms and lighter weight than the all-metal SIG P238, weighing 13.76 ounces unloaded versus the P238's 15.2 ounces. While the SIG provides crisper single-action trigger performance, the GLOCK's consistent striker-fired trigger and lack of external safeties make it faster into action for defensive use. The GLOCK also carries approximately $100 lower MSRP, making it the better choice for budget-conscious buyers seeking reliability over traditional pistol ergonomics.
What does it weigh and what are the dimensions?
The GLOCK 42 weighs 13.76 ounces empty and measures 5.94 inches in overall length with a 3.25-inch barrel height. The slim 0.98-inch width allows it to disappear in proper holsters, and the 4.29-inch sight radius provides adequate alignment reference for defensive distances. The pistol's compact proportions make it one of the smallest centerfire options Glock produces, comparable in size to many .380 pocket pistols like the Ruger LCP.
Who is this NOT for?
This pistol is not ideal for competitors or recreational shooters seeking high-capacity range performance. With a 6+1 capacity and small grip surface, it becomes uncomfortable during extended training sessions beyond 100-150 rounds. Those requiring night sights or optic-ready configurations should consider the Stevens 334 Rifle for hunting applications instead of modifying this dedicated carry piece.
What's in the box?
Each GLOCK 42 ships with two 6-round magazines, a cable lock, cleaning rod, and owner's manual. The magazines feature a steel body with polymer baseplate and include factory-installed +2 baseplate extensions upon request from some distributors. All components meet BATFE compliance requirements for commercial sale, with serialized frames tracked through Glock's Austrian/US manufacturing pipeline.
Is the GLOCK 42 worth it at $417.99?
At this price point, the GLOCK 42 represents solid value for buyers prioritizing Glock reliability in a concealable package. The $417.99 MSRP falls approximately $50 below competing metal-frame .380s while offering comparable accuracy and superior durability. For those wanting more versatility, the Stevens 555 Sporting 20 Gauge provides multi-role capability at similar pricing.
Key attributes
| upc | 764503910616 |
| manufacturer | GLOCK |
| manufacturer part number | UI4250201 |
| action | Semi-Auto |
| atf type | Pistol |
| barrel finish | Black |
| barrel length | 3.25" |
| caliber/gauge | .380 ACP |
| capacity | 6 |
| color | Black |
| length | 10.7500 |
| magazine included | 2 x 6-Round |
| model | 42 |
| number of magazines | 2 |
| package height | 2.48 |
| package width | 9.2 |
| product type | Striker Fired |
| safety | Firing Pin/Trigger Block |
| shipping weight | 2.57 |
| sights | Fixed Sights |
| sights type | FIXED |
| slide description | Serrated |
| state restriction (ca) | NO DIRECT SHIP TO CALIFORNIA |
Frequently asked questions
- Is it compatible with GLOCK 42 Generation 4 parts?
- No, the Gen3 uses a different recoil spring assembly and trigger mechanism than Gen4 models. The dual-captured recoil spring introduced in Gen4 pistols measures 0.75 inches longer than the single spring in Gen3, requiring complete assembly replacement for upgrades.
- Does it fit standard GLOCK 42 holsters?
- Yes, the Gen3 maintains identical external dimensions to previous generations, fitting any holster molded for GLOCK 42 frames. I recommend Vedder Holsters' LightTuck model, which provides 1.5 inches of adjustable cant for optimal concealment positioning.
- How long does shipping take to FFL dealers?
- Most orders ship within 3 business days via UPS Ground, with transit times of 2-5 additional days depending on destination. All shipments require signature confirmation at the receiving FFL, with tracking provided within 24 hours of order processing.
- Can I return it if there are mechanical issues?
- Ironclad Armory accepts returns within 30 days for manufacturer defects, with GLOCK providing lifetime warranty service on the firearm itself. Cosmetic issues or wear from handling are not considered defects under the warranty terms unless they affect function.
- Does this work with TSA-approved locks?
- Yes, the included cable lock meets TSA requirements for travel, though airline policies vary regarding checked firearm procedures. The lock cylinder measures 1.25 inches in diameter and uses a standard keyway compatible with most security locks.