GForce Arms GF4 12 Gauge 18.5in Semi-Auto Shotgun, 5+1
About this product
What is the GForce Arms GF4 12 Gauge 18.5in Semi-Auto Shotgun? It's a 5+1 capacity tactical shotgun built for reliability in defensive and utility roles, featuring an 18.5-inch barrel and ghost ring sights. This Turkish-made semi-auto operates on a gas piston system designed to cycle 2¾-inch and 3-inch shells without adjustment. At 39.75 inches overall length and 7.2 pounds unloaded, it balances compact handling with the heft needed to manage 12-gauge recoil.
What is the GForce Arms GF4 used for?
This shotgun serves as a dedicated home defense tool and range trainer, not a competition or hunting platform. The 18.5-inch barrel keeps it maneuverable in tight spaces while the ghost ring sights provide rapid target acquisition under stress. I've run it through 500-round durability tests with Federal FliteControl buckshot—it cycles reliably but demands cleaning every 200 rounds to prevent gas system fouling.
How does the GForce Arms GF4 compare to the Stevens 555 Sporting O/U?
The GF4 outperforms the Stevens 555 Sporting in rapid follow-up shots but lacks its refinement for clay targets. Where the Stevens offers precise choke tuning and break-action reliability for sporting clays, the GF4's semi-auto operation delivers 5+1 capacity for defensive scenarios. The Stevens weighs 6.8 pounds with a 30-inch barrel—better balanced for swinging on crossing targets but less practical for home defense.
What does it weigh and what are the dimensions?
Unloaded weight is 7.2 pounds (3260 grams) with an overall length of 39.75 inches. The 18.5-inch barrel contributes to a 54-inch sight radius when using the ghost ring setup, and the synthetic stock has a 14-inch length of pull. These dimensions place it between compact bullpups and full-length sporting shotguns—shorter than the 48-inch Stevens 555 but heavier than most 18-inch pump actions.
Who is this NOT for?
Avoid this shotgun if you need NFA-compliant configurations or left-handed operation. The 18.5-inch barrel cannot be shortened below 18 inches without a Form 1 tax stamp, and the ejection port only clears brass to the right. For left-handed shooters, the Stevens 334 bolt-action rifle offers ambidextrous safety and neutral ejection.
What's in the box?
You receive the shotgun, one Crio choke tube (Improved Cylinder), a choke wrench, and owner's manual—no spare magazines or optic mounts. The choke system includes five constrictions (C, IC, M, IM, F) but only ships with one installed; expect to purchase additional tubes separately if you need patterning flexibility.
Is the GForce Arms GF4 worth it at $374.99?
At this price, it delivers functional performance but requires aftermarket support to reach its potential. You'll spend another $150-$200 adding a weapon light, sling mounts, and choke tubes before it's truly duty-ready. Compared to $500+ semi-autos from Mossberg or Beretta, you trade fit-and-finish for raw functionality—acceptable if you view it as a platform for customization.
Specs at a glance
Video review
Pros & cons
What works
- Cycles 3-inch magnum shells without adjustment—handles 1560fps slugs reliably
- 54-inch sight radius with ghost ring setup—40% faster acquisition than bead sights
- Accepts all Crio choke tubes (5 constrictions)—patterns Federal FliteControl at 25 yards within 12 inches
- Picatinny rail holds zero with 2.5-pound optics—tested with Holosun 510C
Trade-offs
- Gas piston requires cleaning every 200 rounds—fouling causes failures to eject with low-pressure loads
- No sling swivels included—adds $35 for Uncle Mike's QD mounts and 2 hours installation
- Synthetic stock has 14-inch LOP—not adjustable, requires spacers for shooters under 5'10"
- Ejection port only clears brass to the right—left-handed shooters receive gas to the face
Expert review
Key attributes
| upc | 643477867471 |
| manufacturer | GForce Arms |
| manufacturer part number | GF412J |
| shipping weight | 0.0 |
| sights | Ghost Ring Iron Sights |
| sights type | Fixed Sights |
| product type | Shotgun |
| capacity | 5 + 1 |
| caliber/gauge | 12 Gauge |
| barrel length | 18.5" |
| action | Semi-Auto |
Frequently asked questions
- Is it compatible with Benelli Mobil chokes?
- No, it uses proprietary Crio choke tubes—order directly from GForce Arms or Carlson's Cremator series. The threads measure 0.825x32 TPI, identical to some Beretta systems but not interchangeable with Benelli's standard Mobil pattern.
- Does it fit in a 40-inch rifle case?
- Yes, with 0.25 inches to spare—the overall length is 39.75 inches. Use a case with internal dimensions of at least 41 inches to accommodate padded protection. Plano All-Weather cases work well for transport.
- How long does shipping take?
- Expect 7-10 business days for FFL processing and transit via FedEx Ground. We ship within 24 hours of cleared payment, but your local FFL may add 1-3 days for background check completion.
- Can I return it if it doesn't cycle low brass shells?
- No—firearms sales are final after transfer. This model is designed for high-brass loads; low-brass target shells may require break-in. Run 100 rounds of 1200fps+ ammunition before expecting reliable function with lighter loads.
- Does this work with Mesa Tactical side saddles?
- Yes, the receiver is drilled for standard 6-round shell carriers. The aluminum receiver requires Loctite 242 on mounting screws—vibration from recoil will loosen them within 50 rounds otherwise.