USC Carbine Mag Release
New HK German USC Magazine Release Fits All USC Factory Lowers & firearms. A great replacement as they are prone to breakage & wear.
Please note: For those that have a USC with bullet button and are moving to a free state and want to revert back to the standard mag release. All you need is this item (USC mag release) in order to do so but we HIGHLY suggest the mag spring as they can become damaged by the bullet button assembly.
- Origin: German
- Brand: Heckler & Koch