Reviews & Ratings for American Built Arms Company AI Spec Magazine — 1 review — Page 1

Anyone who has a 300 Blackout that uses AICS magazines know how hard it is to find a reasonably priced magazine that both fits the mag well and allows the bolt to pick up the round reliably. The magazines used in 300 Blackout are generally 223/556 magazines because the Blackout case size is the same. However, the 30 caliber projectile does not remain in proper arrangement to align in many of the feed ramp designs. Here is one that works. The American Built Arms SA AICS magazine by MDT matched the MOD X Chassis mag well by snapping in snug. It locked in and cycled every round from a full magazine perfectly. Much the release and it drops out without being forced.

In a nutshell "Fit and Function"snapped snug in