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SA ONE-MAG Mid-Cap Magazine for M4 / AR15, 120 BBs - Tan
ONE-MAG Mid-Cap Magazine for AEG M4 / AR15 Rifles (MK18, HK416) by Specna Arms in Dark Earth.
Capacity of 120 BBs.
Reliable feeding even in SA-H One™ Series rifles.
Durable polymer body with textured surface for a firm grip.
Ridges for a better fit in the magwell.
Another product variants
GreyOn stock
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25+ years of proven equipment and accessories.
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ONE-MAG Magazine for M4 / AR15 by Specna Arms
Specna Arms introduces the new ONE-MAG mid-cap magazine designed for AEG rifles like M4 / M16 / MK18 and other platforms based on the AR-15 family. The ONE-MAG is the successor to the S-MAG series, which had a narrower profile that caused wobble in some replicas like the Specna Arms HK416 One™. The ONE-MAG features reinforced ridges in the upper portion to securely lock into the magwell. It is a universal, durable and affordable magazine with excellent feeding reliability. The body is made of lightweight yet strong polymer with a textured surface for confident handling. In short, one mag for all AR-15s – ONE-MAG.
Key Features
- Capacity: 120 BBs
Plenty of ammo for lots of action. - Reliable feeding
Even with RoF above 20 BB/s. - Strong spring
Handles heavy BBs (0.30+ g) with ease. - Durable polymer
Tough yet lightweight construction. - Textured surface
Confident grip even with gloves. - Universal compatibility
Fits most AEGs based on AR15, including HK416 One™.
Technical Specifications
- Type: Mid-Cap Magazine
- Capacity: 120 BBs
- Material: Polymer
- Compatibility: M4 / AR15 / M16 / MK18 / HK416 and other AEG platforms (most brands)
Package Includes
- ONE-MAG M4 / AR15 Magazine 120 BBs
Warnings & Recommendations
- A BB loader is required for filling (not included).
- Always store unloaded to extend spring life.
- For first-time use, start with 20 BBs and cycle them out. Then repeat with 40 BBs, gradually increasing until full capacity, to break in the spring properly.
| Color | Dark Earth (FDE) |
| Magazine material | Plastic |
| High-cap / Mid-cap | Mid-cap |
| Magazine capacity | 120 |