Description
There are a lot of DA/SA service pistols out there, but the PX4 Storm does something most of them don't. Instead of the standard Browning-style tilting barrel, Beretta's rotating barrel design locks up and unlocks by spinning roughly 30 degrees during the firing cycle. The practical result is that a portion of the recoil energy gets redirected rotationally rather than straight back into your hand, which cuts muzzle rise and makes the gun noticeably more comfortable to shoot quickly and accurately. It's not a gimmick — the platform has been in continuous production for over two decades and has been put through 100,000-round endurance tests without parts breakage.
What Sets the PX4 Storm G Apart from Other Beretta Variants
The "G" in the model name matters. Unlike the Type F, which has a combined safety and decocker that stays in the down (safe) position, the Type G's lever functions purely as a decocker. Press it down, the hammer drops safely, and the lever springs right back up — leaving you in double-action, ready to fire. There's no manual safety to disengage in a hurry, which is exactly why this configuration is popular with people who carry hammer-fired pistols for duty or defense. The automatic firing pin block handles passive safety duties.
The frame is built from technopolymer-reinforced fiberglass, which keeps the weight at 27.7 ounces unloaded — noticeably lighter than Beretta's all-steel 92 series while still feeling solid and well-fitted in hand. The barrel is chrome-lined with a deeply recessed combat muzzle crown to protect the rifling, and the black Bruniton finish on the serrated steel slide holds up well against corrosion and daily handling. Three backstraps (small, medium, large) ship in the box so you can dial in the grip fit, and the reversible magazine release makes it genuinely usable for left-handed shooters without any modification.
PX4 Storm G on the Range and in the Field
The single-action trigger break is clean and consistent, and the DA pull — while heavier like any DA/SA pistol — is smooth without much stacking. The 5.87-inch sight radius on the 4.1-inch barrel gives you a solid sight picture with the 3-dot white system. The integral MIL-STD Picatinny rail up front handles weapon lights or lasers without any adapter required. Field stripping doesn't require a trigger pull, and the slide locks automatically during reassembly — two small things that matter after a long day.
Key Specifications
- Manufacturer: Beretta
- Model: PX4 Storm Type G
- MPN: JXF9G20CA
- UPC: 082442885681
- Caliber: 9mm Luger
- Action: Double Action / Single Action (DA/SA)
- Barrel Length: 4.10 in.
- Barrel Type: Rotating, Chrome-Lined Steel
- Capacity: 10+1
- Overall Length: 7.55 in.
- Overall Height: 5.51 in.
- Overall Width: 1.42 in.
- Weight (Unloaded): 27.7 oz.
- Frame Material: Technopolymer-Reinforced Fiberglass (Polymer)
- Slide Finish: Black Bruniton, Serrated Steel
- Safety: Decocker Only (Type G) with Automatic Firing Pin Block
- Sights: 3-Dot White, Fixed, 5.87 in. Sight Radius
- Rail: Integral MIL-STD-1913 Picatinny Rail
- Grips: Interchangeable Backstraps (S/M/L included)
- Magazine Release: Reversible / Ambidextrous
What’s Included
- Beretta PX4 Storm Type G 9mm Pistol
- 2 x 10-round magazines
- 3 interchangeable backstraps (small, medium, large)
Frequently Asked Questions
What does "Type G" mean on the Beretta PX4 Storm?
The Type G designation means the slide-mounted lever functions as a decocker only. When you press it down, it safely lowers the hammer and then springs back to the firing position, leaving the pistol in double-action and ready to fire. There is no manual safety to remember to disengage, which is a setup many people prefer for defensive carry or duty use. The Type F, by comparison, has a combined safety and decocker where the lever stays down and must be manually disengaged.
How does the rotating barrel on the PX4 Storm actually work?
Rather than tilting upward to unlock like virtually every other semi-auto pistol on the market, the PX4's barrel rotates approximately 30 degrees during the firing cycle. This redirects a portion of the recoil energy rotationally instead of straight back into your hand, which reduces muzzle flip and softens the felt recoil impulse. It's the same fundamental concept Beretta developed for their 8000 Cougar series, refined and updated for the PX4 platform.
Can the PX4 Storm be converted between Type G and Type F configurations?
Yes. Beretta sells conversion kits so you can swap between decocker-only (Type G) and safety/decocker (Type F) configurations. The swap is straightforward, though if you're not comfortable working on small internal components, a competent gunsmith can handle it quickly. It's a useful option if your preferences change or if you purchase the G version but later decide you'd like a manual safety.
What backstraps come with the PX4 Storm, and do they actually make a difference?
The pistol ships with three backstraps in small, medium, and large sizes. They swap out without any special tools and do a meaningful job of adjusting the grip reach and palm swell for different hand sizes. This is especially helpful for shooters with smaller hands who might otherwise struggle to comfortably reach the DA trigger on a double-stack full-size pistol.
Is this model the 10-round limited-capacity version?
Yes, the JXF9G20CA is Beretta's 10-round capacity version of the full-size PX4 Storm and ships with two 10-round magazines. The standard full-size 9mm PX4 otherwise holds 17+1, so if you're in a location where standard-capacity magazines are available, it's worth knowing that standard PX4 9mm magazines are compatible with this pistol.
How does the PX4 Storm hold up for long-term reliability?
The PX4 has a strong track record for durability. Beretta has reported the platform surviving 100,000-round endurance tests without parts breakage, and the chrome-lined barrel resists corrosion and cleans up easily. The rotating barrel system, while mechanically different from what most people are used to, has been in continuous production and service use for well over two decades without any meaningful service-life concerns. Rental guns at shooting ranges have logged years of heavy, under-maintained use and kept running.





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