ProMag COLA9B 20-Round .223/5.56 AR-15 Magazine

The ProMag COLA9B is a detachable 20-round magazine for AR-15 and M16 firearms chambered in .223 Remington or 5.56 NATO. Its black polymer body uses a proprietary DuPont Zytel-based formulation, with an injection-molded follower and heat-treated chrome-silicon wire spring.

Key Specifications

• The capacity is 20 rounds for AR-15 and M16 applications.
• The listed caliber compatibility is .223 Remington and 5.56 NATO.
• The magazine is designed for AR-15 type firearms.
• The construction material is black polymer.
• The magazine includes an injection-molded follower.
• The spring is formed from heat-treated chrome-silicon wire.
• The product type is a detachable magazine.
• The listed dimensions are 1.30 × 5.15 × 7.45 inches.
• The magazine is made in the USA.

Designed as a replacement or spare magazine, the ProMag COLA9B provides a straightforward fit for compatible AR-15 and M16 platforms. Its polymer construction, defined capacity, and documented component materials make it a practical addition to a properly configured firearm setup.