This replacement or spare magazine is compatible with your AR-15. It is constructed of DuPont Zytel polymer with an anti-tilt roller follower and mag spring formed from chrome silicone wire. Made in the USA.
ProMag RM40 Standard Black Detachable with Roller Follower 40rd 5.56x45mm
ProMag RM40 Standard Black Detachable with Roller Follower 40rd 5.56x45mm NATO for AR-15
UPC | 708279012549 |
---|---|
Manufacturer | ProMag |
Manufacturer Part Number | RM40 |
Model Fit | AR-15 |
Product Type | Detachable |
Model | Standard |
Capacity | 40 |
Caliber/Gauge | .223 REM/5.56 NATO |
Brand Fit | AR-15 Platform |
Shipping Weight | 0.45 |
Package Width | 5.5 |
Package Height | 2.0 |
Length | 10.25 |

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