MWG IK-520 40 Round AR-15 Magazine Review

A review and torture test of the MWG IK-520 40 Round AR-15 magazine.

MWG 40 Round AR-15 Magazine Specs:

• Model: IK-520
• Dimensions: 9.25″ x 2.5″ x 1.875″
• Capacity:  40 Rounds
• Caliber: .223