Description
The Amend2 MOD-3 Steamboat Willie is a custom-printed polymer magazine engineered for the serious AR-15 platform. This isn't just about looks either – the custom Steamboat Willie print sits on a magazine that's built from long strand glass-reinforced nylon, which gives it improved stiffness and temperature resistance compared to the previous MOD-2 line. Whether you're running drills at the range or training in competition, this mag is designed to handle it.
What Sets the MOD-3 Apart
Amend2 made real improvements from their MOD-2 generation. The polymer resin itself is harder and more rigid, and the feed lips are noticeably beefier – they stick out more to better surround the cartridge for enhanced retention. The textured grip pattern on the magazine body gives you solid control during reloads without catching on gear. Inside, a 4-way anti-tilt follower reduces friction and keeps rounds feeding smoothly under pressure, paired with a heavy-duty stainless steel spring that doesn't lose memory over time.
Built to Run in Harsh Conditions
These magazines have been put through rigorous testing with extreme temperatures, high round counts, and impact scenarios. The MOD-3 delivers consistent feeding in scorching heat and freezing cold without compromise. The matte black finish with muted branding gives it a clean, duty-focused appearance that blends into any setup. Made in the USA, the polymer construction is compatible with Cerakote if you want to add your own custom finish.
With the MOD-3, you get a 30-round magazine that feeds reliably, handles drops and hard use, and brings some personality to your kit. It drops free from standard AR platforms and locks the bolt open on the last round, so you know when you're empty.
Key Specifications
- Manufacturer: Amend2
- Manufacturer Part Number: 556MOD3SBWL30
- UPC: 850057645330
- Caliber: .223 REM/5.56 NATO
- Capacity: 30 Rounds
- Material: Long strand glass-reinforced nylon polymer
- Finish: Black matte with Steamboat Willie custom print
- Follower Type: 4-way anti-tilt, self-lubricating
- Spring: Heavy-duty, non-memory, non-corrosive stainless steel
- Textured Grip: Yes
- Platform: AR-15/M4/M16
- Drop Free: Yes
- Country of Origin: Made in the USA
- Cerakote Compatible: Yes
- Length: 7.7 inches
What’s Included
- 1x Amend2 MOD-3 Steamboat Willie 30-round magazine
Frequently Asked Questions
Will this MOD-3 magazine work with any AR-15 platform?
Yes, the MOD-3 is designed for standard AR-15/M4/M16 platforms and will drop free in rifles with standard magazine wells. It's compatible with any AR chambered in 5.56 NATO or .223 Remington. The magazine locks back the bolt on the last round and seats with a positive click.
How does the MOD-3 generation compare to the older MOD-2?
The MOD-3 uses an improved glass-reinforced nylon that's stiffer and more temperature resistant than the MOD-2. The feed lips are thicker and more robust, the follower is refined for smoother feeding, and overall the materials are harder for better durability. Testing shows improved performance across extreme temperatures and high round counts.
Can I customize this magazine with Cerakote or other coatings?
Yes, the polymer construction is compatible with Cerakote and other custom finishes if you want to match your build or add a personalized look. The base black matte finish provides a clean starting point.
What should I know about the custom Steamboat Willie print?
The print is applied to the magazine body and adds visual flair without affecting function. The muted branding on the magazine blends well in duty environments, and the print is durable against regular handling and use at the range.





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