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Magpul Mbus Gen 1
MAGPUL PTS GEN1 MBUS Front and Rear Backup Polymer Sight Folding Train Black
Magpul AFG 1&2 plus MBUS Rear and front Gen2 back up sights
Magpul MBUS Gen 1 Front and Rear Sight
MAGPUL MBUS Gen1 Folding Sights Front & Rear BLACK
MBUS PTS GEN1 Front and Rear Backup Polymer Sight Folding Train Tan Mag