ProMag COL-A16B AR-15/M16 42-Round .223/5.56 Magazine

The ProMag COL-A16B is a detachable 42-round magazine for AR-15 and M16 firearms chambered in .223 Remington or 5.56 NATO. Its black polymer construction includes an injection-molded follower, while the magazine spring is formed from heat-treated chrome-silicon wire. The magazine is made in the USA.

Key Specifications

• The magazine has a 42-round capacity.
• It is designed for AR-15/M16 firearms.
• The listed caliber compatibility is .223 Remington/5.56 NATO.
• The magazine uses a detachable design.
• The body is constructed from black polymer.
• The follower is injection molded.
• The spring is made from heat-treated chrome-silicon wire.
• The listed dimensions are 1.85 × 4.80 × 11.05 inches.
• The country of origin is the United States.

With its stated AR-15/M16 fit, 42-round capacity, and polymer construction, the COL-A16B provides a clearly specified magazine option for compatible .223 Remington and 5.56 NATO platforms.