Its size and rail mount make keeping the extra battery easy. However the wire has no place to attach to itself, therefore you have to loop the wire around itself and an item such as a sling mount. The little wire is also too long (because it doesnt hook to itself) and gets in the way and/or snags on surfaces
Pros: size, rail mount, cap stays under fire
Cons: price, wire mount
This review was written in the old system and had content requirements that are different than reviews written today.