Magpul PMAG M3 300BLK 30rd Black
$15.15
The Magpul PMAG 30 AR 300 B Gen M3 is a dedicated 30-round magazine for 300 Blackout rifles, providing optimal performance and reliability.
3142 in stock
Magpul Industries Magazine, PMAG 30 AR/M4 GEN M3, 300 Blackout, 30 Rounds, For AR Rifles, Black MAG800-BLK
| Weight | 0.375 lbs |
|---|---|
| Dimensions | 7.500 × 3.000 × 1.000 in |
| Manufacturer | Magpul Industries |
| Capacity | 30 |
| Finish | Black |
| Material | Polymer |
| Compatible With | .300 Blackout |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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