The loaders are made tough and durable thanks to detailed robust design using high-quality materials. Injection molded N12 polymer glass-filled compound with UV stabilization is used for the Body and Slide, and 54HRC hardened steel is used for the magazine catch tooth. The loaders were tested for Slide against Body wear, and were tested for dimensional stability at high and low temperatures. Each includes six rubber feet for positive retention when loading. Fits and loads all* AR15 / M4 compatible 5.56 x 45 / .223 magazines using no inserts or adjustments. Loads: AR15 / M4 USGI (NATO STANAG 4179) Magpul PMAGs H&K metal 416 / SA80 SureFire 60 & 100 rd Beretta AR 70-90 Lancer Hexmags Other metal and polymer mags.
