ProMag COLA9B 20rd AR-15 Magazine – .223 Rem / 5.56 NATO

The ProMag COLA9B is a 20-round detachable magazine designed for AR-15 and M16 rifles chambered in .223 Rem / 5.56 NATO. The body is molded from a proprietary DuPont Zytel polymer and features an injection-molded follower and a spring formed from heat-treated chrome-silicon wire. It serves as a reliable spare or replacement magazine for range use, training, and general-purpose AR-15 ownership. The magazine is manufactured in the USA.

Key Specifications

• The capacity is 20 rounds.
• Compatible with AR-15/M16 rifles chambered in .223 Rem / 5.56 NATO.
• The magazine body is constructed of DuPont Zytel polymer.
• The finish is Black.
• The follower is an injection-molded follower.
• The spring is made from heat-treated chrome-silicon wire.
• Dimensions are listed as 1.30 x 5.15 x 7.45.
• Designed as a detachable AR-15 accessory.
• Manufactured in the USA.

Built for straightforward, dependable service, the COLA9B offers a lightweight polymer construction and proven spring technology to support consistent feeding in everyday range, training, and duty contexts. Its simple, durable design makes it a practical choice for shooters who want a reliable spare or replacement magazine without unnecessary complexity.