Description
ProMag RM-40 AR-15 magazine is built for .223 Rem/5.56 NATO and uses a roller follower design. It holds 40 rounds and comes in a black polymer body. This is a detachable magazine accessory intended for use with the AR-15 platform.
Key features
- Caliber: .223 Rem/5.56 NATO
- Capacity: 40 rounds
- Roller follower magazine design
- Black polymer construction
| Specifications | Details |
|---|---|
| Fits | AR-15 Platform |
| Part Type | Accessory Magazines |
| Capacity | 40 rounds |
| Length | 10.25 |



