20mm Quick Release Aluminum Super Mini Gun Rail Mount for GoPro Hero 1, Hero 2, Hero 3, Hero 3+, Hero 3 Plus, Hero 4 Camera Compatible with GoPro Hero 1, Hero 2, Hero 3, Hero 3+ and Hero 4 cameras Made of tempered grade 6061-T6 aluminum For gun rail 20 mm Package includes: Rail Mount x 1 (GoPro camera, housing and other accessories are NOT included)