Thermold Magazines

About Thermold

Thermold Design and Development has been pioneering polymer magazine technology since the 1960s.

Founded by William Howard, an innovative inventor who applied his automotive plastics manufacturing expertise to create more reliable firearms magazines.

The company achieved a major milestone in 1977 when Howard patented the AR-15 polymer magazine design, predating other major polymer magazine manufacturers by 30 years.

Thermold is recognized as the oldest polymer magazine manufacturer in the United States, setting the foundation for modern polymer magazine technology.

Today, the company operates from Fort Smith, Arkansas, continuing to manufacture high-quality magazines backed by a lifetime warranty.

Popular Thermold Features

Zytel Nylon Resin Construction

• Thermold was the first manufacturer to use DuPont's Zytel nylon resin, providing superior heat and corrosion resistance compared to metal magazines.

Stainless Steel Springs

• All Thermold magazines feature stainless steel springs for reliable feeding and consistent performance.

Removable Baseplates

• Easy disassembly design allows for thorough cleaning and maintenance of the magazine.

Extreme Weather Resistance

• Zytel polymer construction provides exceptional durability and function in harsh environmental conditions.

Lightweight Design

• Polymer construction offers significant weight savings compared to traditional metal magazines.

Lifetime Warranty

• All Thermold magazines are backed by a lifetime warranty, demonstrating the company's confidence in their products.

Best-Selling Thermold Magazines

AR-15/M-16 30-Round Magazines

• The original patented design from 1977, featuring Zytel construction and reliable feeding for America's rifle.

AK-47 30-Round Magazines

• Durable polymer magazines designed for 7.62x39mm ammunition with proven reliability in demanding conditions.

AK-47 Extended 47-Round Magazines

• High-capacity extended magazines offering increased ammunition capacity for AK-pattern rifles.

Glock Pistol Magazines

• Polymer magazines designed to fit popular Glock pistol models with reliable feeding characteristics.

M-14/M1A Magazines

• Lightweight polymer alternatives to heavy steel magazines for M-14 and M1A rifles.

SCAR Magazines

• Specialized magazines designed for FN SCAR rifle platforms with Zytel durability.

HK-91 Magazines

• Polymer magazines engineered for HK-91 rifles offering corrosion resistance and reliable function.

Popular Uses for Thermold Magazines

Military and Law Enforcement

• Thermold magazines provide reliable function in combat and duty situations where equipment failure is not an option.

Competitive Shooting

• The lightweight design and consistent feeding make Thermold magazines popular among sport shooters and competitive marksmen.

Hunting Applications

• Weather-resistant Zytel construction performs reliably in field conditions where hunters encounter moisture, dirt, and temperature extremes.

Training and Practice

• Cost-effective alternatives to OEM magazines allow shooters to have multiple magazines for training without breaking the budget.

Personal Defense

• Reliable feeding and corrosion resistance make Thermold magazines suitable for personal protection firearms that may see infrequent use.

Thermold FAQs

QUESTION: What makes Thermold magazines different from other polymer magazines?
ANSWER: Thermold was the first company to manufacture polymer magazines, patenting their AR-15 design in 1977, and they use DuPont Zytel nylon resin for superior durability.

QUESTION: Do Thermold magazines come with a warranty?
ANSWER: Yes, all Thermold magazines are backed by a lifetime warranty and a 30-day money back guarantee.

QUESTION: Are Thermold magazines made in the USA?
ANSWER: Yes, all current Thermold magazines are manufactured in Fort Smith, Arkansas using proper Zytel materials.

QUESTION: What firearms are compatible with Thermold magazines?
ANSWER: Thermold manufactures magazines for AR-15, AK-47, Glock, M-14/M1A, SCAR, HK-91, and many other popular firearms.

QUESTION: How do I clean and maintain Thermold magazines?
ANSWER: Thermold magazines feature removable baseplates for easy disassembly, cleaning, and maintenance.

QUESTION: What capacity options are available in Thermold magazines?
ANSWER: Thermold offers various capacities from standard 30-round magazines to extended capacity options like 47-round AK magazines.

QUESTION: Are Thermold magazines reliable for duty use?
ANSWER: Yes, Thermold magazines are used by military personnel and law enforcement worldwide due to their proven reliability in harsh conditions.

QUESTION: What material are Thermold magazines made from?
ANSWER: Thermold magazines are constructed from Zytel nylon resin, which provides exceptional heat and corrosion resistance.