SKU CSSI|XJEXDPM556 Category

Mission First Tactical Extreme Duty Polymer Magazine AR-15 5.56x45mm / .223 Rem .300 AAC 30/rd (Bagged)

Mission First Tactical Extreme Duty Polymer Magazine AR-15 5.56x45mm / .223 Rem .300 AAC 30/rd (Bagged)

$12.99

217 in stock

Utilizing new material technology and manufacturing processes for enhanced strength durability and reliability to exceed demanding military performance specifications. Designed for the AR15/M4 but allowing use with a wide range of non-AR15/M4 platforms.

  • 50 percent Stronger
  • 3x More Impact Resistant than traditional nylons
  • Next Generation Long Glass Fiber Polymer
  • Enhanced Strength & Durability
  • Ribbed front and rear gripping surface
  • Long-life USGI-spec stainless steel spring
  • Four-way anti-tilt self-lubricating follower
  • Flared floor plate
  • Oversized bolt catch
  • Paint Pen dot matrix
  • Tool-less disassembly with double floor plate safety release tabs

Additional information

Upc

814002022935

Manufacturer

Mission First Tactical

Manufacturer part number

EXDPM556

Capacity

30

Length

8.4000

Model

Extreme Duty

Model fit

AR-15

Product type

Magazine

Shipping weight

0.325

FAQ

BJ Firearms LLC is a federally licensed firearms business focused on providing quality firearms, accessories, and related services while promoting responsible ownership, education, and community engagement.

The company was founded to serve firearm enthusiasts with knowledgeable service, real-world experience, and a commitment to professionalism and safety.

We focus on real experience, personalized service, hands-on product knowledge, and community involvement — not just sales. Our goal is to help customers make informed decisions and feel confident with their equipment.

Yes. We operate as a federally licensed firearms dealer (FFL), following all applicable federal, state, and local regulations.

Yes. We partner with trusted suppliers to provide quality products and reliable sourcing.

Yes. We partner with content creators and industry professionals to provide real-world insights and experiences.

We work with everyone — from first-time buyers to experienced enthusiasts. Education and guidance are a big part of what we do.

We offer firearms, accessories, gear, and related equipment depending on availability and customer needs.

Yes. We help customers evaluate their needs, experience level, and intended use to find the right fit.

Yes. Depending on the request, we can help source specific products or assist with custom configurations.

Yes. We actively engage in hands-on experiences, demonstrations, and community-related firearm activities when possible.

Yes. We support content that helps people learn about equipment, safety, and responsible firearm ownership.

Social Media Posts

Via Vontaes_Gunz

Customer Reviews

“Outstanding customer service.” I had a lot of questions before buying, and they walked me through everything without pressure. Super knowledgeable and easy to work with. You can tell they actually care about their customers.
Verified Customer
“Best experience I’ve had buying gear.” Professional, responsive, and honest. They helped me choose exactly what I needed without overselling anything. I’ll definitely be coming back.
Verified Customer
“Great people, great service.” Very down-to-earth and easy to talk to. They explain things clearly and make sure you understand your options. Highly recommend, especially if you’re new.
Verified customer

BJ FIREARMS LLC

Age Verification Required.

You must be 18 or older to enter this website. By entering this website, you are agreeing to all policies and procedures.