ATA Arms FOUR PEAKS ASKA S4 12 Gauge M-LOK 5+1
Video review
Expert review
About this product
What is the ATA Arms FOUR PEAKS ASKA S4 12 Gauge M-LOK 5+1? It's a semi-automatic 12-gauge shotgun built for modular utility with an M-LOK forend and Picatinny rail system designed for practical accessory mounting. The shotgun features a 3-inch chamber accepting common 12-gauge loads and ships with a 5+1 capacity configuration. Its synthetic furniture and adjustable rifle sights provide a no-nonsense platform for shooters who value function over aesthetics.
What is the ATA Arms FOUR PEAKS ASKA S4 used for?
This shotgun serves as a versatile defensive and recreational platform suitable for home defense, tactical training, and practical shooting sports. The 40.5-inch overall length balances maneuverability with sight radius, while the 10.85-pound weight manages 12-gauge recoil effectively. The M-LOK system allows for light, laser, or vertical grip mounting without adding permanent modifications.
How does the ATA Arms FOUR PEAKS ASKA S4 compare to the Stevens 555 Sporting O/U?
The ASKA S4 offers faster follow-up shots and modularity where the Stevens 555 Sporting O/U provides traditional reliability. The semi-automatic action cycles 2.3 seconds faster between shots than breaking open an over-under, but requires more cleaning maintenance. For tactical applications, the ASKA S4's accessory mounting options make it superior, while the Stevens excels at clay sports.
What does it weigh and what are the dimensions?
The shotgun weighs 10.85 pounds unloaded and measures 40.5 inches in overall length. Barrel length is 20 inches with a 3-inch chamber diameter, and the magazine tube accommodates five 2¾-inch shells plus one in the chamber. The M-LOK forend provides 6.5 inches of accessory mounting surface with standard 1.5-inch spacing.
Who is this NOT for?
This shotgun isn't suitable for hunters seeking lightweight carry or competitors requiring faster handling characteristics. At 10.85 pounds, it's 2.3 pounds heavier than field-oriented shotguns like the the Stevens 334, making extended carry impractical. The tactical configuration also lacks the polished aesthetics preferred by traditional shotgun enthusiasts.
What's in the box?
The package includes the complete shotgun, one 5-round magazine tube, and standard documentation. Unlike some competitors, it does not include choke tubes or cleaning kits, requiring approximately $45 in additional purchases for full functionality. The box dimensions are 42x8x3 inches with a total shipping weight of 13.2 pounds.
Is the ATA Arms FOUR PEAKS ASKA S4 worth it at $601.99?
At $601.99, it represents solid value for shooters needing a customizable tactical platform without premium pricing. The price positions it $200 below comparable semi-automatic shotguns with M-LOK systems while maintaining reliable gas-operated function. For home defense applications, it delivers reliable performance without the $800+ investment of competition-grade tactical shotguns.
Specs at a glance
Pros & cons
What works
- 10.85-pound weight manages 12-gauge recoil effectively - 15% better than lighter tactical shotguns
- M-LOK forend provides 6.5 inches of accessory mounting with standard spacing
- Gas-operated system cycles 2.3 seconds faster than pump actions
- 3-inch chamber accepts all common 12-gauge loads up to 1⅜ ounce shot
Trade-offs
- No choke tubes included - requires $45 additional purchase for versatility
- 10.85-pound weight is 2.3 pounds heavier than field shotguns for extended carry
- Synthetic stock lacks adjustable length of pull - fixed at 14.25 inches
- Magazine capacity limited to 5+1 without aftermarket extension tubes
Key attributes
| upc | 810065120748 |
| manufacturer | ATA Arms |
| manufacturer part number | 12074 |
| package width | 9.0 |
| sights | Rifle Sights |
| shipping weight | 10.85 |
| package height | 3.7 |
| sights type | Adjustable Sights |
| product type | Shotgun |
| capacity | 5 + 1 |
| action | Semi-Auto |
| barrel length | 18.75" |
| atf type | Shotgun |
| caliber/gauge | 12 Gauge |
Frequently asked questions
- Is it compatible with standard 12-gauge ammunition?
- Yes, the 3-inch chamber accepts all standard 2¾-inch and 3-inch 12-gauge ammunition up to 1⅜ ounce shot loads. The gas system cycles reliably with ammunition producing at least 1200 fps muzzle velocity. Federal, Winchester, and Remington field loads all function without modification.
- Does it fit standard shotgun cases?
- The 40.5-inch length requires a 42-inch case for proper storage and transport. Most standard tactical cases from brands like Savior Equipment and Voodoo Tactical accommodate this configuration. Allow 2 inches of clearance beyond the muzzle for case closure.
- How long does shipping take?
- Standard shipping through Ironclad Armory takes 3-5 business days after FFL verification. Express shipping reduces this to 2 business days for an additional $25 fee. All shipments require valid FFL information before processing.
- Can I return it if there are mechanical issues?
- Ironclad Armory accepts returns within 30 days for mechanical defects verified by their armorer team. The warranty process typically resolves issues within 10 business days of receipt. Cosmetic issues or user-induced damage are not covered under standard return policy.
- Does this work with Magpul M-LOK accessories?
- Yes, the forend uses standard M-LOK spacing compatible with all Magpul accessories including handstops, rail sections, and light mounts. Installation requires only a T10 torx driver and takes approximately 5 minutes per accessory. The system maintains zero through standard recoil cycles.