GForce Arms GF99 DLX 12GA 20in Threaded, 5+1
About this product
What is the GForce Arms GF99 DLX 12GA 20in Threaded, 5+1? It is an AR-platform-style, magazine-fed semi-automatic shotgun built on a modular chassis with a 20-inch threaded barrel. This is a Turkish-made, import-controlled shotgun sold exclusively as a magazine-fed platform, which places it in a distinct regulatory and performance category separate from traditional tube-fed shotguns. Its design prioritizes rapid magazine changes and accessory mounting over the streamlined handling of conventional sporting models.
What is the GForce Arms GF99 DLX used for?
The GF99 DLX is used for practical shotgun competition, range training, and as a dedicated home-defense platform where magazine standardization is a priority. Its primary function is to deliver 12-gauge shells via a detachable-box-magazine system, enabling faster reloads than tube-fed shotguns in structured courses of fire. The 20-inch barrel and adjustable stock make it maneuverable in CQB simulations, but its 8-pound weight and 39.5-inch overall length deemphasize wing shooting or extended carry.
How does the GForce Arms GF99 DLX compare to a Stevens 555 Sporting O/U?
The GF99 DLX is mechanically and conceptually opposite a field shotgun like the Stevens 555 Sporting; it is a tactical, magazine-fed semi-auto versus a traditional over/under. The Stevens is better for clay sports and hunting due to its lighter swing weight and faster pointability, while the GF99 DLX is superior for rapid follow-up shots and ammunition management in timed drills. You choose the GF99 for modularity and tactical reloads, not for breaking clays or carrying afield.
What does it weigh and what are the dimensions?
Unloaded, the GF99 DLX weighs 8 lbs (approximately 3,629 grams) and has an overall length of 39.5 inches. The 20-inch barrel is threaded for Benelli-style chokes (included), and the receiver’s Picatinny rail section is 12.5 inches long—enough to mount a red dot optic and a backup iron sight. The adjustable stock can shorten the length of pull by 1.5 inches, making it usable for shooters with shorter arms.
Who is this NOT for?
This shotgun is not for hunters, traditional trap/skeet shooters, or anyone seeking a lightweight, simple defensive tool. The magazine-fed system adds bulk, and the proprietary MKA-1919 magazine design means aftermarket support is limited compared to ubiquitous Mossberg or Remington patterns. If your primary interest is shooting 3-gun with a manual-action shotgun or you want a field gun for waterfowl, look at our Stevens 555 Sporting lineup instead.
What's in the box?
The box contains the shotgun with one 5-round polymer magazine, three Benelli-style mobile chokes (Cylinder, Modified, Full), a set of flip-up iron sights, and the standard Allen wrenches for choke and sight adjustments. The manual covers basic field-stripping, which takes about 90 seconds with practice, but does not include deep-cleaning instructions for the gas system—that’s a separate process requiring a punch set.
Is the GForce Arms GF99 DLX worth it at $254.99?
At $254.99, it is worth it strictly as an entry-point into magazine-fed shotgun platforms for training and competition experimentation. You are paying for the novelty of the magazine system and AR-style controls on a 12-gauge at a price hundreds below American-made equivalents. However, budget for at least two extra magazines (approx. $40 each) and be prepared for a break-in period of 100-150 rounds to smooth the action—this is not a plug-and-play firearm out of the box.
Specs at a glance
Video review
Pros & cons
What works
- Magazine-fed 12-gauge system enables sub-3-second tactical reloads with practice.
- Threaded 20-inch barrel accepts common Benelli-style chokes for pattern control.
- 12.5-inch Picatinny rail provides ample real estate for optics and accessories.
- Adjustable stock shortens length of pull by 1.5 inches for smaller-stature shooters.
Trade-offs
- Proprietary MKA-1919 magazines cost $38-45 each—expensive compared to $25 Promag tubes.
- 8-pound unloaded weight is 1.8 lbs heavier than a Mossberg 500 Field/Security combo.
- Gas system requires a 100-150 round break-in period with full-power loads to cycle reliably.
- No aftermarket support for trigger upgrades without extensive gunsmithing.
Expert review
Key attributes
| upc | 643477862728 |
| manufacturer | GForce Arms |
| manufacturer part number | GF991220-DLX |
| action | Semi-Auto |
| barrel length | 20" |
| caliber/gauge | 12 Gauge |
| capacity | 5 + 1 |
| chokes included | #5 Cylinder |
| number of magazines | 1 5 rd. |
| product type | Shotgun |
| shipping weight | 0.0 |
| sights | Flip-Up Front and Rear |
| sights type | Adjustable Sights |
Frequently asked questions
- Is it compatible with standard AR-15 parts?
- No, the GF99 DLX is not compatible with standard AR-15 parts. It uses a proprietary bolt carrier group, fire-control group, and magazine system specific to the Turkish MKA-1919 platform. The handguard and stock attachment points are also unique; you must source parts from GForce Arms or dedicated MKA-1919 aftermarket suppliers.
- Does it fit in a standard 42-inch rifle case?
- Yes, with the stock fully collapsed, the 39.5-inch overall length allows it to fit in a standard 42-inch hard or soft rifle case. You will have about 2.5 inches of clearance lengthwise, but the width of the magazine and handguard may require a case with internal dimensions of at least 12 inches wide to close securely.
- How long does shipping take?
- To an FFL dealer, shipping typically takes 5-7 business days after order verification and compliance checks are complete. All firearms ship via FedEx or UPS with adult signature required; delivery cannot be made to a residential address unless your local FFL accepts deliveries there.
- Can I return it if it has a mechanical issue?
- Returns for mechanical issues are handled through GForce Arms’ warranty service, not through the retailer. You must contact GForce Arms directly with proof of purchase; they typically issue a return authorization within 3 business days and cover shipping to their service center in Minnesota for repair or replacement.
- Does this work with a Salvo 12 suppressor?
- Yes, the 20-inch barrel is threaded for standard Benelli-style chokes, which is compatible with the SiCo Salvo 12 suppressor using the appropriate threaded adapter (sold separately by SilencerCo). You must first verify the choke threads are clean and concentric—always check with an alignment rod before firing suppressed.