The Zenith ZF-56 5.56mm semi-automatic rifle combines proven roller-delayed blowback reliability with American manufacturing and modern ergonomics. Built on the same operating principle trusted by military and law enforcement worldwide, this 16-inch rifle delivers smooth, controllable shooting whether you're running drills at the range, hunting medium game, or training for home defense. The ZF-56 comes ready to configure: it ships with a buffer tube and stock already installed, an ambidextrous safety lever, and a full-length Picatinny rail for mounting optics and accessories.
The cold hammer-forged 4150 CMV barrel is threaded 1/2x28 RH and built to last; the last-round bolt hold-open feature keeps the action locked back when your magazine runs dry, and the free-floating M-LOK handguard with integrated heatshield lets you customize your setup without worrying about barrel harmonics. Trigger pull runs 6–8 pounds, predictable enough for both rapid fire and precision work. At 7.5 pounds unloaded, it balances speed and controllability for shooters of all experience levels.
Included in the box are three 30-round AR-compatible magazines (all you need to get started), a high-quality carrying case for transport and storage, and a user manual. The buffer tube end cap is compatible with standard AR stocks and tubes, so you can swap components to fit your needs and shooting style. This is a rifle built to be used, maintained, and trusted—no flash, just solid engineering and American workmanship.
| Caliber | 5.56 NATO |
| Operating System | Roller-delayed blowback |
| Mode of Fire | Semi-automatic |
| Barrel Length | 16 inches |
| Barrel Material | Cold hammer-forged 4150 CMV |
| Barrel Thread | 1/2x28 RH |
| Rifling | 6 grooves, RH twist 1:10" |
| Handguard | M-LOK free-floating with heatshield |
| Picatinny Rail | Full-length mounted |
| Magazine | 30-round AR-compatible (three included) |
| Trigger Pull | 6–8 lbs. |
| Safety | Ambidextrous manually actuated lever |
| Stock / Tube | Buffer tube and stock pre-installed; buffer tube compatible end cap |
| Weight (Unloaded) | 7.5 lbs. |
| Included Accessories | (3) 30-round AR magazines, high-quality carrying case, user manual |
| Warranty | Limited Lifetime |
The ZF-56 uses a roller-delayed blowback system, which provides reliable, low-recoil operation without requiring a direct impingement gas tube or piston. This design is known for durability and smooth shooting.
Yes. The cold hammer-forged barrel is threaded 1/2x28 RH, so you can attach suppressors, flash hiders, muzzle brakes, or other threaded accessories designed for 5.56 rifles.
Your ZF-56 ships with three 30-round AR-compatible magazines, a high-quality carrying case, a user manual, and the rifle fully assembled with buffer tube and stock already installed.
The ZF-56 accepts standard 30-round AR magazines. Three are included with the rifle.
Yes. The free-floating M-LOK handguard lets you attach foregrips, lights, and other M-LOK accessories. A full-length Picatinny rail is also mounted for mounting scopes, red dots, and tactical accessories. The buffer tube end cap is compatible with standard AR stocks and tubes, so you can swap components to suit your preferences.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
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Zenith Firearms
