MagLink® Coupler – PMAG® 30/40 AR/M4 - MagpulConstructed from the same high strength, impact resistant polymer as Magpuls industry trusted PMAGs, the MagLink features a wide set, two piece bolt on design that resists flexing and shifting, even under rigorous use. Internal grooves lock into the magazines ribs to prevent movement and slippage during handling or transport. Compatible with both 30 and 40 round PMAGs in GEN M2 MOE and GEN M3 variants, this coupler is a must have for shooters looking