Review and photographs by Oleg Volk
With the proliferation of AR15s and STANAG-compatible rifles, many of us end up having to keep numerous incompatible magazines on hand. For example, 6.8mm SPC and 338 Spectre require one type, 223 Remington, 300 Blackout and 458 SOCOM another, 7.62×39 a third. Keeping them straight for a range trip is half the problem. Changing over chest rig pouches from mostly straight 223 to curved 7.62×39 is more annoying. And the cost of getting numerous magazines for every caliber isn’t trivial, either. The Unimag by Ross and Zheng Engineering solves this problem by using a stainless-steel body shaped much like a regular GI magazine and a clever articulated follower that automatically adjusts to the shape of the cartridge column. It worked well for me in a variety of AR15s, ARAK21, TAR21, RDB, MAD556 (a roller-lock rifle with very fast cycle). The magazine body is treated with slick anti-corrosive finish on the inside and with textured finish on the outside. This design should be of a special interest to 458 SOCOM users, as it holds a dozen large-bore rounds instead of the usual ten that fit in a conventional GI magazine.