ProMag COL-A4 AR-15 20-Round .223/5.56 Steel Magazine

The ProMag COL-A4 is a 20-round detachable magazine for AR-15 rifles chambered in .223 Remington or 5.56x45mm. Its heat-treated steel body is paired with an injection-molded polymer follower and a chrome-silicon wire spring. The magazine is made in the U.S.A.

Key Specifications

• The magazine fits the AR-15 platform.
• It accommodates 20 rounds.
• The listed chambering is .223 Remington/5.56x45mm.
• The magazine body is made from heat-treated steel.
• The follower is an injection-molded polymer component.
• The spring uses chrome-silicon wire.
• The magazine is a detachable design.
• The product is made in the U.S.A..

Designed as a replacement or spare magazine for compatible AR-15 rifles, the COL-A4 combines a steel body with specified follower and spring components in a practical 20-round format.