ProMag magazines are made in the USA and backed by a lifetime guarantee against manufacturer's defects. Magazine springs are precision wound using heat-treated chrome silicon wire and each and every step of the assembly process is checked and double checked in order to maintain the same consistent level of quality.
Specifications
| CALIBER | 223 REM/5.56 NATO |
|---|---|
| CAPACITY | 40 ROUNDS |
| Features | 40-Round Magazine; Fits Ruger Mini-14 .223 Cal / 5.56X45MM Rifles; Magazine Body Constructed of a Proprietary Dupont Zytel Based Polymer, and Heat Treated Steel with Black Oxide Finish; Steel Upper, Polymer Lower Housing; Injection Molded Magazine Follower; Magazine Spring Formed From Heat Treated Chrome Silicone Wire; Made in the U.S.A. |
| FINISH | BLACK |
| Height | 1.2500 |
| Length | 9.5000 |
| MATERIAL | STEEL & POLYMER |
| Width | 2.7000 |