Description
Magpul 300 Blackout magazine for sale — the PMAG 20 AR 300 B GEN M3 is a purpose-built 20-round magazine for compatible AR-15, M4, and M16 rifles chambered in .300 AAC Blackout. Its compact design helps improve maneuverability while providing a more streamlined setup for short-barreled and small-format firearms.
Unlike a standard 5.56 magazine, this dedicated Magpul 20 round 300 Blackout magazine is built around the unique cartridge geometry of 300 BLK ammunition. The optimized internal design supports reliable feeding with different projectile profiles, making it a practical choice for range use, training, hunting, and other lawful shooting applications.
The magazine’s ribbed body and smoother upper texture create a noticeable visual and tactile difference from standard 5.56 PMAGs. This helps shooters identify their 300 Blackout AR-15 magazine more easily and reduces the possibility of mixing it up with a 5.56 magazine.
Made from impact- and crush-resistant polymer, the Magpul PMAG 20 300 BLK MAG1182-BLK is designed for dependable service in demanding conditions. Aggressive front and rear texturing provides a secure grip, while the slim removable floorplate makes cleaning and maintenance straightforward.
A paint-pen dot matrix allows easy labeling, and the included dust and impact cover helps protect the magazine during storage and transport. The black finish gives this Magpul 300 Blackout magazine for sale a clean, professional appearance that complements most AR-style rifles.
Key features
- 20-round capacity.
- Designed specifically for .300 Blackout / 300 BLK.
- Compatible with AR-15, M4, and M16-pattern rifles.
- Compact body for improved maneuverability.
- Distinct ribbed design for easy identification.
- Helps reduce confusion between 300 BLK and 5.56 magazines.
- Impact- and crush-resistant polymer construction.
- Aggressive front and rear gripping texture.
- Easily removable slim floorplate.
- Paint-pen marking grid for identification.
- Dust and impact cover included.
- Black finish.
- Made in the USA.
Product specifications
- Brand: Magpul
- Series: PMAG GEN M3
- Model: PMAG 20 AR 300 B GEN M3
- Model number: MAG1182-BLK
- Platform: AR-15 / M4 / M16 compatible rifles
- Caliber: .300 AAC Blackout
- Capacity: 20 rounds
- Material: Polymer
- Type: Detachable magazine
- Finish: Black
Before use, confirm that your rifle is chambered for .300 AAC Blackout and verify magazine compatibility with your specific platform. Keep 300 BLK and 5.56 ammunition clearly separated, as using the wrong ammunition in a firearm can cause serious damage or injury.
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